Telmar.com Telmar.com eTelmar.net Home Page The Advertising Media Internet Center

Telmar Home Page Telmar.com

 

Media Guru

Guru Search Results: 88 matches were found


Thursday, June 04, 2009 #7699

We have been using the following formula to add reach from month to month for our online campaigns: (R1+R2)-(R1*(R2/100))*.96. After some research on your site, the initial part of the formula seems to be the formula for random probability but I'm not sure where the multiplying it by .96 came from. Any thoughts? Could that be another estimate on duplication?

 

The Media Guru Answers(Saturday, June 06, 2009 ):

Applying a factor like "0.96" is an old technique to adjust random duplication (which, as you say, is the first part of your formula) for the fact that duplication in some cases is somewhat greater than simply random.

Between different media, such as print and tv, it is thought to be truly random, that is, there is no greater likelihood that a newspaper reader of your campaign will see your tv campaign, than any other two random events.

However, between two elements of the same medium, like two TV dayparts, there is a more than simply random chance of duplication. That is the traditional case for using a factor like 0.96.

Between consecutive time periods of the same medium, as in your case, the Guru expectss a much greater chance of duplication. You are looking at new exposures of the same vehicle, which should be represented as accumulating along one sharply flattening asymptotic curve (see below). It's a "cume," not a "combination." Random combination is far too optimistic. Unduplicated users from the first few months to the next added would probably become virtually total unless each month used unique, unrelated sites.


Tuesday, April 21, 2009 #7688

The media Guru Answers(Thursday, February 05, 2009 ): Bookend :15's are the first and last elements of a commerical break. For all practical, purposes, there is virtually no audience growth from the first to the last, usually just :90 apart. So for reach purposes, they are equivalent to a single commerical unit. This is an informed judgement. But by the definition of GRP, they are two separate exposures of ads. Just like two separate ads in the same issue of a magazine. This is fact. Therefore, the GRP contribution counts both units and reach calculation treats them as one. Dear media Guru: We, as a buying group, support and understand as an industry standard both :15s in a bookend have the full TRP value of a :30 spot. However, we have been asked to provide documentation to support this fact. Are there any resources you can suggest we could utilize to support this?

 

The Media Guru Answers(Wednesday, April 22, 2009 ):

This is a matter of standard definitions.

GRP's are simply defined as impressions divided by populaiton universe. An impression is a single exposure of an ad. Length of exposure is NOT a part of the definition. "Documentation" of this fact could be found in any elementary media text or on several web pages with media definitions. Even the wikipedia entry for GRP / TRP is clear on this, although it is written poorly otherwise.

It is entirely reasonable to use judgement to assign different values to TRPs based on their commercial length. It is common to create weighted GRP measures based on length, awareness scores, recall scaores, etc,


Wednesday, February 04, 2009 #7662

I'm not sure I understand your answer to this question below. Perhaps you can explain better with an example? I agree with the person asking the question that it is not right to double the GRPs. Tuesday, November 28, 2006 #7236 Hello Guru my question is about spot TV units called "bookend 15s". I'm not too familiar with them, and not sure I'm asking the question right. I am told that in the process of buying bookends each :15 has to be counted, doubling one's points. Is it wise to halve the points to gauge a more realistic delivery of R&F? It just doesn't feel right to assume the delivery is really doubled, even thought it technically is two exposures. Your opinion is much appreciated, and thanks. The media Guru Answers(Sunday, December 03, 2006 ): For reach calculation purposes, count the bookend :15s as one unit and use the double GRPs. Frequency then is correcltly more-or-less doubled.

 

The Media Guru Answers(Thursday, February 05, 2009 ):

Bookend :15's are the first and last elements of a commerical break. For all practical, purposes, there is virtually no audience growth from the first to the last, usually just :90 apart. So for reach purposes, they are equivalent to a single commerical unit. This is an informed judgement.

But by the definition of GRP, they are two separate exposures of ads. Just like two separate ads in the same issue of a magazine. This is fact.

Therefore, the GRP contribution counts both units and reach calculation treats them as one.


Monday, October 20, 2008 #7622

Hi, Me again #7621. I need to back up. If my frequency is 57 total spots per week - how do I calcuate the average? this is direct response - so do I divide by total days or specific time periods? When I divide by days (7)I get 8.14 - which still makes my reach terrible (4.91%). What am I doing wrong? Over a 4 week period my total GRP's are 40 and total spots airing are 57.

 

The Media Guru Answers(Monday, October 20, 2008 ):

Although arithmetically, GRP ÷ frequency = reach, it does not mean you can get there the way you are going.

Reach is a complex calculation of the net number of different people exposed to your campaign, taking into account the duplication of audience between one spot and another on one station and between the audiences of different stations. Once you have determined reach, typically with a computer model, you can devide GRP by reach and get the average number of spots (frequency of exposure) seen by each of the people who were exposed at all. No manipulation of the numbers of spots you buy will get you to this average frequency that is a quotient of GRP and Reach.

You need a computer with software such as that offered by Telmar.

The calculation is extremely complex. For example, in print, as input, you need average issue audience, duplication between issues of the same publication and duplication between each possible pair of different publications. These must be combined using a complex formula such as the Beta-binomial function. There are variants of this formula, which might be preferred, depending on media type and other variables


Wednesday, October 15, 2008 #7618

Please explain the following on how are they calculated as I cant get it. I couldnt paste the Table so for your understanding the data has 6 Columns & 3 rows.

Markets| Pop ln 000s| Reach 1+%|AvgOTS| Reach 3+%|Avg OTS
MumbaiUA| 3703 | 64 | 9.29 | 53.4 | 11
BangloreUA|1139 | 61 | 7.36 | 43.8 | 10
Thnkx Anoop

 

The Media Guru Answers(Wednesday, October 15, 2008 ):

The calculations are not apparent from the data.

The populations of the markets are probably adjusted census data created by your media measurement resource.

Reach 1+ is the unduplicated number of persons exposed at least one or more times to the relevant media schedule, expressed as a % of the populaiton Complex algorithms are used to model actual, measured media consumption,

Average OTS (Opportunities To See) or "average frequency" in US terms is the average number of times each person reached one or mmore times has seen an ad in the schedule.

A missing datum is GRP. Reach X OTS = Gross Rating Points Reach 3+ is the % who have been exposed to the campaign at least 3 times and the next OTS column is the average number of exposures among this more heavily exposed set of persons reached. The same model algorithms will have been used.


Friday, May 23, 2008 #7552

media Guru thank you for your quick response . I understand that you are concerned with the forced exposure, however if this is not the issue, let me ask you the following questions. I understand your 20 advertisers X.50= $10.00 a week and I follow your $1.19 CPM ($4,500/3,780,000 = $1.19) And I understand charging each advertiser $4,500.00 a week arriving at $90,000. However anticipating that this amount would have been per advertiser on a national buy leaves us in a position of uncertainty. Secondly, we were anticipating charging $10 per screen per week per advertiser(I omitted to mention this) in my last e-mail. How can we maintain such a screen rate without using a multiplying factor and remain with an acceptable CPM? The answer I presume is to increase the reach within the 9000 screens deployed (but this is a constant measurement and con not be tampered with) Thirdly is the screen rate per week the important factor here or is the buyer more concerned with the CPM allowing us to charge a screen rate as desired, and maintaining a desirable CPM. Fourthly will it be easier for a media buy (and for us) for the buy to be done on a strict CPM basis? And is there an acceptable CPM for OOH, what I mean to say is there a barrier. Thank you for your insight this is amazing. Regards, S

 

The Media Guru Answers(Saturday, May 24, 2008 ):

Unless you are selling individual screens, nobody will care about your screen rate. Total cost and cpm are the considerations. And this mjeans it's about gross impressions, not "reach."

Unless you have a special audience, such as physicians or C-level executives, the Guru does not expect a cpm much over $5.00 will be palatable to buyers of such an out-of-home medium.


Monday, March 24, 2008 #7521

Dear Guru, I need a clear concept of GRPs. I understand the terminology that it is the sum of rating points but what actually refers to it and what is the rationale behind it. For suppose, I have achieved 235 GRPs over a period of 40 days and my audience is Male - Female, 18-35, SEC- A & B. What does 235 as a weight refers to. What is the minimum threshold level of GRPs. How does the calculation works. I am clear on reach and frequency. Thank you!

 

The Media Guru Answers(Monday, March 24, 2008 ):

For any given audience considered, each time there is one exposure of an ad to one member of the audience, an "impression" is generated; there are 2 impressions whether the same person sees an ad twice or two different persons each see an ad once, and so on.

If the sum of all these impressions is divided by the population base (universe) of the target audience, the result is GRP, which are expressed as a percent of the population. I.e. if the number of impressions is equal to the population size, the result of the calculation is "1" or 100%, expressed as 100 GRP.

Similarly, the impressions of a single ad, divided by the population, is the ad's rating. Thus, the sum of all ratings is also the GRPs. There is no "rationale," these are simply media terms and definitions.

Different theories and approaches set various GRP thresholds depending of marketing goals.


Wednesday, March 12, 2008 #7510

What is the viability of in store LCD advertising when the stores are retail chains and the advertisers are all existing FMCG producers in the retail outlet. There hasnt been a lot of research in SA but international research is deeming this hybrid media a huge success. So the question is: Would FMCG producers rally to purchase this advertising space? If yes then what would be a reasonable purchase price; Would it be in the price range of print/tv/radio or cinema?

 

The Media Guru Answers(Wednesday, March 12, 2008 ):

You are asking the Guru to be a fortune teller.

Assuming you are talking about screens displaying full audio/video TV style ads, the Guru has the following thoughts:

  • The medium has more of the values of out-of-home or POP than other media. exposure / engagement is casual, while the audience is doing something else or going somewhere. What will make the consumer stop to view a full message?
  • Placement in the retail environment will give it appeal to FMCG seeling there, but it would have to start at low pricing until proven.
  • It is worth some premium over static Out-of-home or POP, but not more than 100%


Wednesday, January 30, 2008 #7488

Hello Guru, I am in the middle of an argument with a friend, and we are hoping that you can settle our dispute. My friend insists that the reach and frequency of a print schedule with 3 insertions in Better Homes and Gardens in the same month will be a different reach than 3 insertions spread out over 3 months. I disagree. We both have access to R&F tools and I even showed her that the end resulting reach will be the same. She now insists that the tools we use are wrong. Please help.

 

The Media Guru Answers(Wednesday, January 30, 2008 ):

Your friend is right. 3 insertions in 3 different issues will generate more reach than 3 insertions in the same issue. This should be intuitively obvious: the reach of the 3 ads in the same issue can only be the audience of a single issue, with virtually no unduplicated exposures from each additional ad.

3 different issues each have a significant number readers that the other two do not. In media research and research tools, we treat an ad in any print issue as if it were read by everyone who reads the average issue, although there is obviously some overstatement in this standard. But audience measurement actually demonstrates that different issues have somewhat different audiences, even if the majority of the audience is duplicated by the next issue.

Your R&F tools are probably not "wrong." Your interpretation of the results probably is. The Guru would be very surprised to learn that your R&F software offers a way to distinguish the inputting of a schedule of 3 ads in one issue from 3 ads in different issues. If it seems to, but gives the same reach in both cases, then it is wrong.


Tuesday, December 04, 2007 #7455

Hi What is effective cover? Is it the same as effective reach?

 

The Media Guru Answers(Tuesday, December 04, 2007 ):

"Effective cover" is unfamiliar. Effective coverage might be a term you have seen abbreviated that way. Adding the word "effective" to another media metric like reach means that there is some limitation to the measurement, as effective reach means that we are counting only the portion of the reach that has received some designated amount of frequency of exposure.

Coverage is generally used in one of two ways:

  • The portion of a demographic group that is in the audience of a single issue / episode of a media vehicle, most often a print vehicle, or
  • The portion of a media market with the opportunity to see a media vehicle issue, most typically newspaper coverage, calculated as circulation ÷ households.

The limitation that might be intended by any particular use of "effective coverage" is unclear. Often cable and syndicated tv programs use coverage to describe the portion of the U.S. in the markets where the programming is available, regardless of whether or not everyone in those markets subscribes to that cable network or ever choses to view the program. In such a case, "Effective coverage" might be one way to put it.


Monday, November 05, 2007 #7440

Is there an industry standard or formula I can use to estimate length of time it would take to brand a new company in small regional areas from a media standpoint. Is there a goal to set for GRPs or impressions? I understandn the short answer is probably "no" with so many variables to take into consideration but I am hoping for maybe some parameters and goals to shoot for. thanks.

 

The Media Guru Answers(Monday, November 05, 2007 ):

You are right that there are many elements here beyond duration of media exposure.

Your biggest issue in looking for formulas is quantifying your terms.

First off, how do you quantify "to brand?" What factors define a "branded" company?

  • There must be awareness, certainly (how much?)
  • The awareness must be positive and relate to the brand character desired.
The latter depends on creative as much if not more than media. The creative must say something positive about the company, it must say something that supports the branding message and it must be memorable.

From a media perspective, awareness correlates strongly with reach and frequency. Ad awareness will never be greater than the reach level achieved, and will not equal that level without sufficient frequency. This is why some planners look only at reach at 3+ frequency or some other frequency level judged effective.

Using the best media, whether described in terms of environment, "engagement" or other impact descriptors, is important.

Budget is also a controlling factor. Time-wise, "branding" would be likely to be achieved sooner if higher GRP levels were used.


Wednesday, August 15, 2007 #7405

Can you tell me if the following thing is true? It comes from an article in the economist.com, which I've seen reprinted in a few places, including here: http://doublefusion.com/posts/economist.com--the-ultimate-marketing-machine24.php The article is all about how the internet is making advertising less wasteful. There's one particular sentence that I must be misunderstanding, which seems to say advertisers are paying for a CPM of $500 to get their ads on a website that comes up in a search. Here is the relevent section: "By contrast, the new advertising models based on internet technologies amount to innovation. Instead of bombs, says Mr Tobaccowala, advertisers now "make lots of spearheads and then get people to impale themselves." The idea is based on consumers themselves taking the initiative by showing up voluntarily and interacting with what they find online. In its simplest form, this involves querying a search engine with keywords ("used cars", say), then scanning the search results as well as the sponsored links from advertisers, and then clicking on one such link. In effect, the consumer has expressed an intention twice (first with his query, then with his click). The average cost to an advertiser from one such combination is 50 cents, which corresponds to a CPM of $500; by contrast, the average CPM in traditional ("exposure") media is $20. A consumer's action, in other words, is 25 times as valuable as his exposure. " Am I reading this right? Is this some kind of typo or drastic miscalculation? I've never seen anything like a $500 CPM anywhere (I'm not too confident on the $20 CPM for traditional media either, but it's the $500 that shocks me). Do $500 CPMs exist anywhere at all? Thanks!

 

The Media Guru Answers(Wednesday, August 15, 2007 ):

Search engine results should not be compared to other media on a cpm basis.

This is a highly advanced form of direct marketing. In ordinary media, such as magazines, cpm is based on a theoretical "opportunity to see," as if every reader of the magazine not only saw your ad but was shopping for the product when they saw it and then decided to call for information or visit your store. What percent of a magazines audience do you imagine would qualify on that basis? Probably less than 0.1%.

So a magazine with a $20 cpm would deliver a $20,000 cpm on that basis, to compare to your $500

In search engine results, you only pay 50 cents for those people who have decided to shop for what you are selling and then have visited your your online "Storefront."

So it's a good deal, and traditional cpm is an irrelevant measure in this case.

Isn't a consumer who actually browses your catalog or visits your store 25 times more valuable than one who may or may not have even seen your ad, much less cared about it?


Monday, July 16, 2007 #7389

Dear media Guru, I am currently researching marketing habits, i am looking for a breakdown of say how many adverts, websites, brands etc we see on average per day?

 

The Media Guru Answers(Sunday, July 22, 2007 ):

Some say the total number is in the neighborhood of 2000 a day, a highly sensationalized figure popular in media reporting. Clearly, even when fully engaged in media consumption one is only going to see 30 or so ads in an average hour of TV, for example, and even if you are skimming through a magazine at the same time, would the number double? A person is only likley to be exposed to at most 16 hours per day of ads (gotta sleep, too), and probably takes some time off ad viewing to work. "Brand exposure" is not readily measurable, if you want to count everytime a label might be seen in the day. A person who spent an hour or two shopping the supermarket or Home Depot could well add a couple of thousand brand exposures that day.

In 2004, media Dynamics, Inc's "TV Dimensions" estimated a daily potential exposure of 288 ads, counting TV, radio, print and internet.


Sunday, July 15, 2007 #7388

Hello Guru: Years ago I was a media planner for a lg agency so I'm familiar with media principles/terms. I'm also familar with online "revenue model desciptions" Now I am in pre-financing stage for a new business start-up and to get funding need to outline how the offering will be monetized - the online revenue models/formulas and be able to calculate projected revenues/identify CPM,CPC,etc. I'm also doing a marketing plan and costing for the biz plan. Might you able to provide or direct me to these formulas/calculators and comparative media CPM's etc? Of course I am bootstrapping at this stage so have little/no funds to pay for software. Also have or will all of the calculations change given Nielsen's shift to duration versus page views? Thanks so very much for your help.

 

The Media Guru Answers(Sunday, July 15, 2007 ):

The Guru is having some trouble finding the media buying/planning questions in your query. Presumably you know cpm is cost per thousand impressions, i.e. expenditure ÷: advertising exposures, and that cpc is cost per click, i.e. expenditure ÷ mouseclicks on the ad.

The Guru does not yet see that Nielsen's switch to site rankings based on total minutes spent will affect ad exposure measures. The minutes spent measure switch is based on the idea that page content on many major sites changes while the user remains on the same page. The changing content may or may not include the ad content, depending on site design. But it is still ad exposures that matter in cpm and site ad pricing.


Monday, May 28, 2007 #7339

What is the "Sainsbury" formula and is there a difference between unique circulation and paid circulation? Thank you!

 

The Media Guru Answers(Monday, May 28, 2007 ):

The Sainsbury formula is a method for combining the reaches of schedules in different media. It varies from the simple random probability method which is based on the generally accepted assumption that there is no particular correlation between exposure to one medium and another. Sainsbury varies by adding a small adjustment to account for an assumed slightly more-than-just-random probability that those exposed to an advertiser's schedule in one medium will also be exposed to its schedule in the next medium. Typically, the adjustment is about a 5% deduction from the result of the random combination.

As you will see at the link shown, we may vary in our arithmetic expression of the probability equation (for the same result), so we can express the Sainsbury formula as (0.95 x random probability).

Unique circulation and paid circulation are unrelated terms.

  • Paid circulation refers to the number of copies which are actually bought for money at the newsstand or by paid subscription, rather than distributed free or at such a discounted rate that the circulation auditor no longer qualifies the copies as "paid."
  • "Unique" is more commonly an intrnet audience term. Perhaps you are thinking of "unduplicated" audience which only counts readers once, if they read two or more issues.


Wednesday, April 04, 2007 #7309

Who is the founder of Random media Combination theory? Thank you

 

The Media Guru Answers(Wednesday, April 04, 2007 ):

The Guru would not consider this a "theory" per se, nor that there is a "founder."

The "random" concept is basic statistics: when the probablity of occurrence of two unrelated phenomena is known, then the probablity of both occurring is calculated by the product of the two probabilites. In media terms, this means:

  • The reach of a given medium is the probability of the audience being exposed to the schedule
  • So 30% reach is 0.30 probability of exposure
  • The combined reach of a media schedule (say print) with a 30 reach and another media schedule for the same advertiser (say tv) with a 60 reach is actually calculated by figuring the probability that neither reached the target:

    0.7 probability that print didn't reach the target x 0.4 probablity that TV didn't reach the target = 0.28 probability that neither reached the target or 72% reach (1.0 - 0.28 = 0.72)

Multiplying the two reaches together gives the probability of both reaching the target, which is not reach, but duplication.

Of course, the reach of different media schedules reaching the same target are not truly unrelated phenomena, and various adjustments to pure random have been promulgated by many practitioners.


Tuesday, April 26, 2005 #6906

Re: Spot Radio Do you have any studies or opininons on minimum spots/daypart/station/week? I have a buyer who insists that its ok to buy only 1-2 spots/daypart/station week as long as they reach 12 spots/station/week. This theory seems to be based on the fact that radio listeners listen to multiple dayparts on a particular station and thus frequeny is gained throughout the day. I believe that daypart minimums should be a priority and that its better to buy 4-5 spots/week on a station for one daypart than avoid a station entirely just because 12x/week cannot be achieved. I believe that people tend to be loyal to stations by daypart (i.e. listen to the same drive-time show every day but not to that station at any other times) so we need to build frequency throughout the week on that daypart and that to buy only 1-2 spots/week/daypart (even if you achieve 12x/week) is a waste of money.

 

The Media Guru Answers(Friday, April 29, 2005 ):

Some radio professionals, especially on the sales side, insist on the 12x/week minimum, some flex as low as 10. The Guru has not previously encountered a "4-5 spots in one daypart" as a total schedule theory.

media theory is best built around the consumer effects. The consumer needs to get a certain frequency of exposure through a medium, and the plan needs to reach a certain minimum portion of the target. The consumer is notr likely to be aware nor affected by the portion of that frequncy which comes from any daypart nor from any one station.

As with any medium, radio should be used until the building of desired communications impact (generally reach) begins to taper off. At the micro level, this may mean 12 or 18 spots on the best station (however judged) before adding another station. Four or five spots seems to be a no-impact minimum, unless your target is specifically only listeners to that daypart and that station. The same thinking says consider station specifics. In some cases, paticularly among Hispanic or Black consumer markets, top stations can generate target ratings in the 5.0-10.0 range, rather than the 2.0 range typical of top general market staions and targets, meaniing these multicultural stations can extend reach beyond ordinary radio levels.


Thursday, April 07, 2005 #6887

Can you give an updated response to the question of how many ads the average person is exposed to every day? I read your 1997 response, but it seems that now with the Internet and so many more types of "interruption" advertising, that number must have increased. And while we're on the subject, what would the number be for the average American 25 years ago?

 

The Media Guru Answers(Sunday, April 10, 2005 ):

It is crucial to keep in mind that a person has only so much time in a day to experience commerical exposure, And that hasn't changed much in 25 years.

Assume a person has 16 waking hours a day, or 960 munutes.

Assume that this person works or attends class or otherwise is not experiencing significant ad exposure for 7 of those hours, leaving 9 media consumption hours, or 540 minutes. And assume that one-quarter of that time is consumed by ad exposure, or 135 minutes. And if :30 is the average broadcast ad length these days, that's 270 ads if it's all broadcast. Print must be calculated somewhat differently, but lets say one ad exposure for two minutes of consumtion here as well. If web surfing time has replaced 1 daily hour of TV time for the average person in 25 years, how many more ads per minute does the intenet present than TV? On a content site, even if it's 2 per minute, the overall effect on average daily ad exposure is minimal. The Guru would guess less than 10% change in daily ad exposures over 25 years, again because there is only so much time in which to experience ad exposure.


Sunday, November 28, 2004 #6705

MG, I believe I've seen recent news about efforts to align methods for measuring online and offline media. My first question: Are you familiar with these efforts? Second: Have you seen any data ranking the "effectiveness" of specific channels online and offline. (Clearly "effectiveness" is a tricky label, but I'm referring to it only in the sense of the effort to align measurement methods referred to above.) Thanks.

 

The Media Guru Answers(Thursday, December 02, 2004 ):

1. Yes, the Guru is aware of such alignment efforts. They have been going on almost since the dawn of internet advertising in 1995. Organizations like CASIE, Association of National Advertisers, American Association of Advertising Agencies and The Advertising Research Foundation have led these efforts.

More recently, The Internet Advertising Bureau is a leader. The newly linked I/PRO and BPA internet audit effort, with the participation of Agencies for Internet Audits, is also a force for this goal.

The essential unit of media measurement is agreed among traditional and online media to be the "impression;" one exposure of one ad to one person. Although measurment methods differ among media types, once there is agreement to impression numbers, moving to reach, frequency and GRP figures is relatively easy.

2. As you acknowledge, "effectivenss" is subject to interpretation and is best examined within an advertising category. One medium may be best for selling real estate another for cars and a different one for diamond jewelry. Within a medium, it is more reasonable to compare the effectiveness of various vehicles, while controlling for copy variations. And of course defintions of effectiveness are variable; sales, awareness, share change, etc.

One great advantage of online advertising is its accountability and immediately measurable results.


Friday, October 01, 2004 #6622

I have a really stupid question, but I think that I have looked at these cost per points and cost per thousand analysis until I have confused myself. I have three markets. Two of the markets of very small and the other is a larger market. Why is the cpm more in the two small markets and in the large market the cpm is higher. Cost per points are much lower in the small market, but why the cpm out of line? I hope this is clear. Thanks for your help.

 

The Media Guru Answers(Friday, October 01, 2004 ):

To oversimplify:

  • CPMs are prices of exposure of1000 people and CPPs are prices of percentages for populations
  • CPP is much more likely therefore, to be proportional to market size; value of exposure to 1% of a market with 10,000,000 population is obviously greater than exposure to 1% of a market of 100,000 population
  • But why are 1000 people in the smaller market more valuable than 1000 people in the larger market? A couple of issues:
    -Fewer media competitors
    -Physical cost of operation represents a bigger portion of costs; i.e. if turning on the same lights, cameras and transmitters costs the same in both places, but a spot's price has to relate to population somewhat, there is a larger portion of spot cost paying for operations versus the portion that can reflect media value in small markets


Monday, August 02, 2004 #6560

Dear Guru: In one of your answers re efficiency of :15 spots vs :30 you said: "In a campaign, these latter measures may mean overall recall and impact favor :15s, if the message can be communicated". Can you give me any references to such studies. The references I have been referred to so far support the opposite view: "Television viewers' attitudes and recall of 15 second and versus 30 secund commercials. James S.Gould" and "Max Sutherland & Alice Sylvester "Advertising and the mind of the consumer". Thank you.

 

The Media Guru Answers(Friday, August 06, 2004 ):

The issue is what do you measure; under almost any circumstances, a :30 has better recall than a :15. But the consumer experince is not about seeing a :15 or a :30. If a campaign has 50 to 100% more exposures because it is executed in ;15, the reach and frequency will definitely be increased and if the ;15 communicates the message, overall effect may be better. It's about camaign versus creative. i.e the media director view rather than the creative director view.


Tuesday, March 23, 2004 #6430

Dear MG, Thanks for replying to my question on quintiles. If we take the same example (Q No. 3965) how does quintiles help in better media planning or deciding on the media mix.

 

The Media Guru Answers(Friday, March 26, 2004 ):

Quintiles of media allow selecrion of media which are more likely to be cosnumed by the target.

Quintiles of schedules allow balancing frequency of exposure so that a greater portion of those reached are exposed "enough" times to the campaign.


Monday, March 22, 2004 #6427

Dear MG, In respose to Q.No. 3965 Dated Nov 13, 2000 you said that reach is devided into 5 quintiles of 20% each. Then we have to look at highest viewing qintile and lowest viewing one. I want to know from how do you find the highest and lowest viewing quintile. Our media Analysis Software gives data in terms of reach, frequency and GRP for a given schedule in addition to reach at 1+, 2+, 3+ etc exposures.

 

The Media Guru Answers(Monday, March 22, 2004 ):


It's a fairly simply bit of arithmetic:

Imagine you have the following frequency distribution for a schedule of 31 Reach, 95.9 GRP and 3.1 average frequency:

Frequency

Reached exactly (%)

Reached at least (%)
0
69.0
100.0
1
11.6
31.0
2
6.0
19.3
3
3.7
13.4
4
2.6
9.6
5
1.8
7.1
6
1.3
5.2
7
1.0
3.9
8
0.7
2.9
9
0.6
2.2
10+
1.6
1.6
20+
0.0
0.0

That is, 31.0% reached at least once (1+) and 11.6% reached exactly once. To convert to quintiles, the steps are as follows:

 

  1. Divide the reach into 5 equal groups to set the percent reached in each quintile. This will be 6.2% reach (see table below)
  2. Beginnning with the "1" frequency level in your frequency distribution, put GRPs into your quintile table. That is, if 11.6% were reached exactly once, then the lightest 6.2 percent must have been reached once, so you can fill in the "lightest" row at 1.0 average frequency and 6.2 GRP.
  3. This will leave
  4. 5.4% reached 1 time to begin building the "next lightest" quintile (11.6 - 6.2 + 5.4)
  5. Now you need to take 0.8 reach from the reached 2 times group to finish building this "Next lightest" quintile (5.4 left + 0.8 from the 2 frequency = 6.2)
  6. This quintile now has 5.4 GRPs ( 5.4 reach @ 1 frequency) plus 1.6 GRPs (0.8 reach @ 2 frequency) for a total of 7.0 GRP. By division we determin the average freqeuncy for this quinntile is 1.1 (7.0 ÷ 6.2 =1.1)
  7. Continuing the same way, the middle quintile is made up of the remaining 5.2% reached 2 times and another 1% reach from the 3 frequency group, so it has 13.4 GRP and 2,2 average frequency
  8. "Next Highest" has the remaining 2.7 from the 3 frequency level, the 2.6 from the 4 level and 0.9 from the 5 level, to make 23.0 GRP and 3.7 frequency
  9. Finally, the "Highest" quintile has the remaining 46.3 GRP (95.9 - 46.3 accounted for in the four lower quintiles) or conitinue working the arithmetic for each frequency in the distribution.

 

QUINTILE  Reach Freq GRP
Highest
6.2
7.5
46.3
Next Highest
6.2
3.7
23.0
Middle
6.2
2.2
13.4
Next Lowest
6.2
1.1
7.0
Lowest
6.2
1.0
6.2
Total
31.0
3.1
95.9


Tuesday, November 25, 2003 #6274

If a rating point is the percentage of the audience that could see the message, then what is the difference from reach? I work at a small agency, and we have gotten rid of our software. I used to be able to plug a plan in, and it would compute my reach and frequency, based on the ratings. How can I figure this out without software, if I know the rating points and GRP's?

 

The Media Guru Answers(Friday, November 28, 2003 ):

Each advertising exposure has certain rating points. For a single such exposure, Rating equals Reach.

For a Schedule, each of the various exposures will duplicate a portion of the audience of the other exposures. The sum of the ratings, less the Duplicated audience is the reach. The sum of the ratings is open-ended. Reach can approach - but not exceed - 100% of the target.

The calculation is complex, and software is worthwhile, especially pay-per-use software like our own eTelmar.

For example, in print, as input, you need average issue audience, duplication between issues of the same publication and duplication between each possible pair of different publications. These must be combined using a complex formula such as the Beta-binomial function. There are variants of this formula, which might be preferred, depending on media type and other variables.


Tuesday, September 30, 2003 #6182

Dear media Guru, In our market we have two companies that offer radio traffic sponsorships. I have been asked by a client to compare the two in order to show which one offers the best exposure and the best "bang for the buck." One company offers live :10 reads on over 19 stations the other offers taped :15s on 9 stations. I know that I can use strata to combine all the stations for each group to get an overall rating average, but I am wondering if I should weight the ratings since these are not :60s. What do you advise? Also, besides, grps, cpp and cpm is there any other data that I should include in my comparision to show the strengths or weaknesses of each group? Thanks! KJG

 

The Media Guru Answers(Saturday, October 04, 2003 ):

Weighting is reasonable. Do the "live" versions allow last minute changes? If "live" means simple announcer script, but taped meand full production, you need to quantify the difference. It might be more significant than just the length difference.


Wednesday, July 09, 2003 #6069

i'm looking to find the ideal test market for an energy efficient lighting product. available budget is modest, so i need a market that provides exposure opportunities, yet is media-affordable. we're looking specifically at cable drtv as the main medium.

 

The Media Guru Answers(Monday, July 14, 2003 ):

Contact SpotCable


Thursday, July 03, 2003 #6061

Dear media Guru, I am dealing with mapping the exposure to the mass media campaign of a certain non-profit organisation. I found nothing in the literature on such mapping other than the use of geodemographic. Can you please refer me to articles or websites or companies who deals with such mapping, and if there are none or but few, can you please suggest why is there no demand for such mapping? Many thanks.

 

The Media Guru Answers(Monday, July 07, 2003 ):

It seems to the Guru that mapping, in a vacuum of other data, is not very useful. Geoscape is one soure of multivariate - media delivery mapping systems.


Thursday, May 15, 2003 #5974

I can use random probability to calculate reach. Is there any way I can create a complete frquency distribution? For instance, Is it correct to add up probabilities for an individual for 4 publications (Say 0.75, 0.75, 0.5 and 0.25) and say that frequency for the person is 2.25?

 

The Media Guru Answers(Sunday, May 18, 2003 ):

The Guru follows neither your math nor your logic here.

If your example means the the indivisual has a 75% chance of reading the first publication, etc how would that give the person a 2.25 frequency for the 4? You are working with almost unrelated data, not to mention the overstatement of random probability in calculating reach of related media. Further, frequency distribution deals with the numbers of persons who experienced each integral frequency, i.e. how many had one exposure, how many had two exposures. No individual may have a fractional exosure.


Saturday, January 04, 2003 #5716

I have read somewhere that Krugman's 3-exposure theory did not necesserily imply the need for 3 (or 2 or 4) physical exposures, but only a series of mental steps, which may take place after a series of exposure, or after just one. This seems to have more sense as it places adequate importance on different product/media/circumstance-related, creative and other relevant factors. On the other hand this turns the effective frequency theory into nonsense. What do you think?

 

The Media Guru Answers(Saturday, January 04, 2003 ):

The idea of the 3+ concept then is to assure the other steps occur. Perhaps you are thinking of the explanation of the theory that goes smething like "the first time the information is merely presented, the second exposure causes recognition, and the third causes remembering / accepting / acting or whatever. Rather than leave the latter two steps to the vagaries of chance or psychophysiology, the e second and third ad exposures give some assurance. This is the difference between planning and hoping.


Thursday, December 05, 2002 #5657

Where can I find information on Frequency and Reach of major Network stations

 

The Media Guru Answers(Thursday, December 05, 2002 ):

There seems to be some confusion about terms or metrics here. First, let's assume you are asking about network affiliate stations in major markets, such as New York's WNBC.

Then we could learn from Nielsen how many persons the staion reaches in a given period of time and the average frequency of exposure of these persons to the station.

But since frequency is a more useful measure of an advertsing schedule, the Guru expects that your question may have been something else.


Wednesday, November 27, 2002 #5649

How can I optimize a media plan based on advertising response curve???

 

The Media Guru Answers(Sunday, December 01, 2002 ):

If your advertising response curve is assumed to be "S" shaped (as in many published studies), this means there are diminshing returns as frequency (repeated exposure) is added after an optimal point.

One approach to optimization on this basis might be to begin building reach in the most effective medium, and add the next most effective medium at the point of diminishing returns of the first. Then, the added exposures would be more likely to hit a previously unexposed group of prospects.

This assumes you will base your judgement of "most effective medium" on the one which generates the most results (sales / awareness / perception change, etc.) per dollar. . . and track incremental results on the same basis.


Monday, June 24, 2002 #5375

Do you have any updated information on the number of ad messages the typical consumer is exposed to DAILY?

 

The Media Guru Answers(Sunday, June 30, 2002 ):

This statistic is only used for "hype" purposes, usually to portray advertsing as some kind of social evil. The Guru has recently heard numbers cited between 3,000 and 20,000. These numbers are ludicrous. When challenged, those citing them will hedge and say they meant "informational messages" or some such and include product lables passed in a grocery store. The only way to get a total this high is to do exposure counting by a methood that would include, for example the idea that when a person turns the pages in a newspaper's classified section he is exposed to all 500 ads that might be on each spread of those pages.

When considering these silly numbers, it is best to stop and think: a person is usually only awake for about 1000 minutes per day. If they did nothing else but look at or listen to adverstising, it would take every minute of the day to generate 3000 exposures. A number aound 500 might be a reasonable extreme, again counting as exposure all the out-of-home media passed, and small space ads in newspapers and magazines,even thought there may be no notice taken at all.


Wednesday, May 22, 2002 #5301

In one of your responses to advantages of media mix and multimeedia strategies u have mentioned "Better distribution of frequency of exposure" as the advantage of using a media mix Can u pls elaborate on this Thanks for the help

 

The Media Guru Answers(Thursday, May 23, 2002 ):

Each medium has heavier and lighter users. The heavier and lighter viewers of each medium duplicate at random, so that heavier print readers may be the lighter TV viewers. Consider the graph below, comparing a TV + print plan (1) to an all-TV plan (2). At the same budget, Plan 1 had a reach / frequency of 89.5 / 6.7 while plan 2 achieved 78.6 / 5.7.

Not only does plan 1 have better total reach and average frequency, but the portion of the target exposed to each number of ads (in the bar graph) is greater for plan 1. The proportional margin increases as number of exposures grows.


Tuesday, May 21, 2002 #5297

I am writing a POV for a client on radio frequency levels. Are there any guidelines or general principles on weekly and 4-wk frequency goals for national radio? I haven't been able to find anything through the RAB.

 

The Media Guru Answers(Sunday, May 26, 2002 ):

There are many theories. Other than buying 12 spots per station per week, in local radio, there are few standard points of agreement, and even the 12 spot theory is not absolute.

For example, in some situations, such as Black or Hispanic radio, where ratings levels can be 8 or better; GRPS for 12 spotrs can be 100 or more and you are really buying reach more than frequency, attitudes about frequency will change.

Then, are you talking about spots-per-week frequency or average frequency of exposure? The answer will again change depending on what other media are in the plan.

The Guru feels that all this and more need to be taken into consideration, rather than look for general rules.


Wednesday, March 20, 2002 #5162

How many ads does it take to make an impression? to generate a response or action?

 

The Media Guru Answers(Thursday, March 21, 2002 ):

The media term "impression" means one exposure of one ad to one member of the universe.

Tradition says it takes three exposure to genrate recognition and action.

It really varies depending on category, medium, message, copy quality, and other factors.


Thursday, February 21, 2002 #5104

Dear Guru, how can I appriciate the effectiveness of media mix (TV, press and Radio)?

 

The Media Guru Answers(Saturday, February 23, 2002 ):

The Guru is unclear on what you mean by "appreciate."

Among the benefits of media mix are

  • Gerater reach
  • Better distribution of frequency of exposure (flatter quintiles)
  • Ability to focus on different elements of communication; e.g. the immediacy and impact of full sight, sound and motion through tv plus the detailed descriptions of print


Friday, January 11, 2002 #4998

Broadcast planning; I work in the digital space and was trying to learn more about how broadcast is planned, specifically television.

 

The Media Guru Answers(Tuesday, January 15, 2002 ):

Planning is a process of matching media choices to advertisng goals.

The biggest differences for traditional media versus digital are

  • Planners don't think in terms of a single medium; the plan is theoetically open to any medium at the start.
  • Audience measures are typically more detailed and finite, especaily in regard to reach.
  • Outside of direct response planning, audience exposure estimates, rather than any analog of clicks is key.
See media planning texts in the AMIC Bookstore (in association with Amazon.com)


Friday, August 24, 2001 #4675

Dear Guru! Is there, to your knowledge, a "role of thumbe" when it comes to number of exposures necessary for one ad-observation in different media; for example 4+ in TV, 2+ for newspapers etc.

 

The Media Guru Answers(Sunday, August 26, 2001 ):

The Guru deosn't think there is a valid "rule of thumb" in this case. One could evaluate the schedule in each medium according to the 'Ostrow Model'


Wednesday, August 01, 2001 #4626

Could I have information about print, tv and other media in the following countries maldives,nepal,sri lanka, bangladesh Information would be in terms of media exposure number of vehicles and so on Also would help if I have information on demographic and psychographic profiles of population for these countries Where would I find such info ? Thanks Andre

 

The Media Guru Answers(Wednesday, August 01, 2001 ):


Wednesday, July 25, 2001 #4607

Hi ! Two questions 1. how do you decide which cume (1wk or 13 wk or 52 wk etc) to choose. 2. where can I find the details of the ostrows grid actual one with the scales etc. Thanks and regards

 

The Media Guru Answers(Wednesday, July 25, 2001 ):

1. Four week R&F is standard. Otherwise, if you need to examine a specific time period related to your marketing, use the closest cume.

2. The Ostrow model aims at establishing the minimum level of frequency to be deemed effective so that the plan can maximize reach at that level of frequency. The model can be traced back to his speech, "Effective Frequency" at an Advertising Research Foundation Key Issues workshop, June 4, 1982.

Typically, the model involves evaluating a series of relevant factors on a scale of say, 2 to 6, and averaging the factors to determine the appropriate level of frequency to set as effective.

In the 1982 speech the factors discussed were of three kinds: marketing, message / creative and media.

Marketing

  • Established brand vs new entry
  • Brand share
  • Brand loyalty
  • Purchase cycle
  • Usage cycle
  • Share of voice
  • Target group learning capacity

Message / Creative

  • Complexity
  • Uniqueness
  • New vs continuing campaign
  • Image building vs specific sell
  • Message variation (copy pool)
  • Wear out
  • Copy unit size/length

media

  • Clutter
  • Editorial / program environment
  • Attentiveness
  • Continuity vs flighting
  • Number of different media
  • Repeat exposure opportunities
.

For the full speech, the transcript proceedings of the workshop are available from the Advertising Research Foundation InfoCenter For details about the InfoCenter, call 212-751-5656, extension 230.


Monday, May 14, 2001 #4396

Is newspaper used as a reach or frequency vehicle?

 

The Media Guru Answers(Sunday, May 20, 2001 ):

Reach. With only one daily exposure opportunity in most cases, the frequency possibilities are far less than broadcast, online or out-of-home media.


Monday, April 30, 2001 #4348

Have a client that questioned the use of Recency planning for a packaged goods product launch in spot market television. I've read all questions/answers from 2000 in the archives and found it curious that no one questioned the fact that the levels used for standard recency planning of 60-80 TRPs per week refer to MEDIUM exposure not ADVERTISING exposure. Considering that probably only 40% of the commercial message will even register, aren't these levels low (clutter factor), even if they are spread across multiple weeks (in this case 9)?

 

The Media Guru Answers(Tuesday, May 01, 2001 ):

A: Medium exposure is the readily available planning metric.

B: Recency has been keyed to measured results from media exposure levels.

C: The media exposure levels referenced in Recency are -- and this is important -- REACH, not GRP. The reach threshhold is thought to be about 30 - 35, which might tie to various GRP levels, depending on media mix.

D: If best sales success is tied to sustained reach minima of 35, then that is the metric to connect with. The fact that the less readily available ad exposure or attentiveness-weighted GRPs are some other number is an artifact of the process, not a contradiction to the theory.


Thursday, January 04, 2001 #4078

Within the plethora of recency documents you've reviewed, have you found any that plot effectiveness based on timing prior to the purchase decision? Phrased differently, if you have a leisure product for which the purchase decision is time-sensitive (e.g., a television show or movie with limited release dates), how much more effective are ad exposures immediately prior to air time vs. 1 day out, 1 week out, etc.?

 

The Media Guru Answers(Friday, January 05, 2001 ):

Recency is about continuity and non-time-sensitive purchases. No doubt there are studies which have genrated scales base on time elapsed between exposure and purchase.

Try The Advertising Research Foundation InfoCenter. For details about the InfoCenter, call 212-751-5656, extension 230.


Wednesday, November 15, 2000 #3972

I'm a newcomer to the site and I very much enjoy your bright responses. Re recency, you write >a core concept of recency is that once the third exposure is delivered, all additonal exposures are at 3+.< That concept belongs to Herb Krugman, ("Why Three Exposures May Be Enough.")whose work was misread as supporting effective frequency. The corresponding core concept of recency is a single exposure within a short planning interval is most cost-effective. These results in moderate TRP's and more weeks of advertising. When heavier weight is called for (i.e., new product introductions), instead of accepting random frequency, recency shortens the planning interval and maintains a solus reach goal. Planning for continuous reach produces a better distribution of frequency. My apology for this somewhat truncated explanation. I can provide greater detail if you'd like. Erwin

 

The Media Guru Answers(Thursday, November 16, 2000 ):

Erwin;

As the leading industry writer on the topic, your comments are greatly appreciated, and you'll have to excuse the Guru for using your own writings in his reply.

Maybe "seminal" concept would be a better term than "core" concept when the Guru cites this Krugman principal, since it is more part of the evolution than structure of recency.

Perhaps connecting the concepts himself, but gathering them from your own articles, such as Learned Any Ads Lately?, the Guru sees the concept that all additional exposure are at 3+, as part of the underpinnings of Recency. Because this idea gets us past the effective frequency issue, the -- superior, in the Guru's opinion -- Recency theory surmounts objections from the effective frequency camp.


Monday, November 13, 2000 #3965

Can you give a definitive explanation of media quintiles (radio, tv, newspaper)?

 

The Media Guru Answers(Thursday, November 16, 2000 ):

Quintiles are used in two key ways:

  • Quintiles of media, and
  • Quintiles of schedules

Quintiles in either case involve dividing the people under consideration into five (quint-) equal groups for analysis. Why five? Why not? it has become the established method. Three groups would often be more useful: "average," "above average" and "below average" are easier to conceptualize. And some advertisers have considered "nine-tiles."

In media quintiles, the users of a medium, like radio, are divided into five equal groups, arrayed according to their heaviness of use, for example, the 20% of the population who listen to less than 3 hours of radio per week, those who listen to 3 to 6 hours, up through those who listen to 50+ hours. The range of hours of listening are set so that each range takes in 20% of the population. Then, other aspects of the behavior of these groups may be evaluated and lead to media or marketing decisions.

For example, if the lightest radio listeners are also light TV viewers, but the heavy newspaper readers, newspaper may be the best way to add reach to a radio plan and more evenly distribute frequency of exposure across all the people reached.

Quintiles of schedules are similar, but only consider those reached by a media schedule. For example if you had a radio schdule of 500 GRP in four weeks with a reach of 70 and a 7.1 average freqency, you might find that the lowest frequency 20% of your schedule reached (14 reach ou of the 70) had an average frequency of 1.0 and the highest frequency quintilehad an average frequecy of 19.8. When you add newspaper to the plan you can examine each quintile of the combined reach and will likely find the least reached group of the new total has a better average frequency.


Wednesday, November 08, 2000 #3954

Hello media Guru, I work for a franchise organization that purchases general market network radio. A small percentage of the stations on the radio networks are Hispanic. Our creative is, naturally, intended for the general market and thus does not air in Spanish. We have had several complaints from our field offices that this offensive to our Spanish-speaking consumers. I have heard that there is a way to "block" those stations from airing our message. However, I need to first verify that this is truly considered offensive, as some believe that it can't hurt and just adds exposure of our message. I have reveiwed sources that show a language preference, but do you know where I can find information that might support the argument that the field offices make? Thank you for your help!

 

The Media Guru Answers(Sunday, November 12, 2000 ):

There are numerous sources which demonstrate that Spanish advertising is more effective than English advertisng among Hispanics, but the situation you describe is a bit odd.

The Guru wonders why a general market radio network would have Spanish language stations in its lineup? And why would Spanish language stations carry an English language network? But if that situation existed, and Spanish speaking consumers were hearing English language programming, it is not likely that they would be "offended" by English language commercials within that programming.

And, if you are making an "un-wired" buy, that is merely time on stations with no programming involved, then you should be able to substitute Spanish copy on the relevant stations.


Saturday, July 29, 2000 #3663

Dear media Guru I am a media planner from Pakistan.I need to ask what are the possible comparison tools that we can use while planning for different programs on television.At the moment while planning i calculate cost index, rating index, efficiency index, Avg GRP's, Maximum reach, and avg.viewing miniutes for each time slot. Normally i advertise in time slots with high effeciency index, is this a good comparrison tool for planning or not. Normally the decay factor that i take is 10% is this OK or not. What are the different possible ways to break the adverising clutter on television and increase the possibility of high ad exposure. Thax in anticipation Sarwar Khan media Manager R-Lintas (Pvt.)ltd. Lahore Pakistan

 

The Media Guru Answers(Saturday, July 29, 2000 ):

It always fascinates the Guru that countries sharing a common language can use it quite differently when applying it to the jargon of a particular business or interest.

What you are describing as "planning" seems to the Guru to be what he would regard as a buyer's selecting a schedule after a plan has been approved. You haven't mentioned what goals you are pursuing with your schedules. Selecting spots with the best efficiency index (audience versus cost) will get you the greatest total number of impressions, but possibly not the greatest net reach. The best rating is more often likely to lead to high reach, but perhaps not without due regard to efficiency and duplication.

"Decay factor" is an unfamiliar term to the Guru. "Maximum reach" and "average viewing minutes" don't seem relevant to assessing individual spots as the Guru understands the terms.

Overall, the Guru believes you should be comparing possible schedules, rather than individual spots to accomplish planning goals.

Optimizers serve this purpose, but running reach analyses of several schedules can get you there, as well.


Wednesday, April 26, 2000 #3424

I'm doing a campaign for a small restaurant chain with a relatively small budget. The goal is to drive traffic for lunch. I'm going to run in the AM and afternoon drives. Is it really necessary to have a 3 frequency if I'm going to be on the top 3 stations on the same programs each day at the same time over a period of 8 weeks? The schedules that I'm getting back show in the low 2's.

 

The Media Guru Answers(Thursday, April 27, 2000 ):

The common reference to a goal of "3 frequency" which you may have heard stems from century-old learning theory which found that 3 repetitions of information were required for it to be "learned" and acted upon. Many media planners use this theory and so specifically consider how many members of their target they are reaching at least 3 times.

You, however, seem to be looking at the average frequency of a schedule, which is different. Any schedule with at least three annoucements will have some portion of its reach exposed to 3 repetions. You need to decide what portion of your audience should be reached three times. YOu need to judge this by looking at the combination of all stations: you may be looking at individual stations reach and frequencies.

Finally, you may consider the full 8 week schedule. A station may be reporting to you only the one week reach and frequency, if you haven't specified, all stations, full cume.

With a schedule of just two dayparts on three stations you are probably getting a fairly low reach at high frequency and this is a completely different sort of consideration than the "3 frequency" issue.

Many planners today are abandoning the effective reach (3+) approach in favor of "recency," the concept that the exposure closest to a purchase decision is the most effective one. You plan might agree more with this approach if it has enough weekly reach.


Monday, April 10, 2000 #3383

For an "Impression Advertisement" what is the time that the ad must be available for viewing. Can you place 6 banner ads for 10 seconds each and have each 10 seconds be credited with an impression ? Thank you

 

The Media Guru Answers(Monday, April 10, 2000 ):

In broadcast, where presentation is linear, time of exposure doesn't change how we count GRPs and impressions. However, limiting display time of a banner means that there is less chance of exposure, as the user may have scrolled away from the active portion of the page. As a media buyer, the Guru would not give full credit to this method of display.


Monday, March 27, 2000 #3341

Hello I am currently enrolled in the 3-year advertising program at Mohawk College in Hamilton, Ontario, Canada. In response to a class project and of great interest to me, I am in search of answers to the following questions regarding obtaining a career in the Internet advertising field. 1. What programs are used in the creation of Internet advertisements? 2. What are the job titles and descriptions of jobs within Internet advertising? 3. What are the specific qualities looked for when hiring a person for Internet advertising? 4. How does Internet advertising differ from other forms of advertising? 5. What should a student keep in mind and focus on while attending school in order to further their changes in Internet advertising related career? 6. Is there an organization solely devoted to Internet advertising? 7. What forms of Internet advertising are offered? (Ex. WebPage design yes, banners, etc) 8. When should a company inquire about Internet advertising as a form of advertising? 9. How long has Internet advertising been around and how has it grown throughout the years?

 

The Media Guru Answers(Monday, March 27, 2000 ):

Since this is the media Guru, we will address those of your several questions which relate to media issues.

  1. Not a media question
  2. Other than "webmaster" all internet advertising media titles are approximately the same as in other media: General manager/publisher, sales manager, sales account executive on the website side; media Director, media planner, media buyer on the buying side. Some companies may have invented special titles either to reflect their individuality or special business structure, such as "Channel manager" when selling multiple sites that can be grouped topically
  3. There should be no specific qualities sought in hiring media people for internet purposes rather than any other media, other than possibly better computer skills and internet familiarity. It was not unusual, in the early days of internet advertising, for employment ads to be signed only with a website or email contact information, so that those who didn't understand such information wouldn't apply.
  4. The chief differences of internet advertising versus other media include:
    Interactivity: Any consumer action in response to an ad generates a reaction by the internet
    Combines the full animation potential of TV with the detail capability of static print
    Consumer action in response to an ad 'place-marker', i.e. the banner, is required before the full ad, i.e. the click-thru target, is exposed
    Unlike other media where the medium's full audience is attributed to each ad, the internet allows us to count actual ad exposures
  5. A student should take any internet courses offered in addition to the full standard advertising curriculum, if working in internet media is the only goal.
  6. There are several organizations devoted solely to internet advertising: The Internet Advertising Bureau, which is the Web site owners trade group, C.A.S.I.E. (The Coalition for Advertising Supported Interactive Entertainment) which is primarily, if not exclusively internet focused, is the advertiser/agency internet trade group. Of course there are numerous internet sales representative organizations and ad agencies/media services.
  7. Internet advertising forms include websites, banners (meaning any less-than-full-page ads displayed on websites) interstitials, and e-mail advertising. Within e-mail advertising are three principal types: ads as sponsorships, inserted into subscription email newsletters and discussion group posts, Opt-in email, where the recipient has actually agreed to receive by email commercial information from the sender, and SPAM, or Unsolicited Commercial Email, which is commercial messages posted to newsgroups or sent by direct email. This last is completely disreputable and banned by most consumer ISPs.
  8. An advertiser should consider internet advertising alongside all other media when selecting media for any plan. Internet media should be used when it offers an advantage in efficiency (quite rare), an opportunity to reach an otherwise difficult-to-reach prospect, or the opportunity to deliver a message of a kind or in an environment which enhances message impact.
  9. Internet advertising of one sort or another has probably existed since the early days of the internet. As a real medium, internat advertising is traced to the beginnings of the commercialization of the World Wide Web at the end of 1994. The year 2000 will generate over US$5 billion online ad revenue


Tuesday, February 29, 2000 #3260

Guru - internet CPM models do not appear to involve the issue of how much time each banner is displayed. Is there any numbers on this (i.e., average stickyness) that is expected?

 

The Media Guru Answers(Tuesday, February 29, 2000 ):

Nor do CPMs in other media relate to the duration of exposure unless time is the unit of sale, as in broadcast. The Guru considers stickyness to be about time spent on a site, perhaps viewing several pages with different banners, and not related to the amount of time a banner is visible. It would be a tricky concept anyway, since banners are not neccessarily visible the entire time a visitor is on a given page, depending on screen-size settings and scrolling behavior.


Friday, February 25, 2000 #3248

Looking for ideas on unique media vehicles in the Southwest US. Unique as in non-traditional.

Traditional being: spot tv, spot radio, bulletins, posters, transit shelters, bus wraps, taxi tops, wall murals, kiosks, print, aerial advertising (blimps, airplanes, etc.) trailer panels, mobile video displays, in-airport displays, in-transit exposure, direct mail, flyers, sponsorships.

 

The Media Guru Answers(Sunday, February 27, 2000 ):

When you rule out the traditional mass media, "new" electronic media, direct mail, most forms of out-of-home, and require geographic specificity, you have pretty much come down to untried out of home, such as painting the sides of mesas in the desert or putting logos on souveniers, like arrowheads.

What you want probably isn't in place yet, but the world is waiting for you to invent it.


Wednesday, January 05, 2000 #3097

Dear Guru Please can you tell me how I know when x% reach is enough? From going through the archives it seems as if your answer will be "that this is a judgement call" but surely there must be something more scientific than that?

 

The Media Guru Answers(Wednesday, January 05, 2000 ):

Yes, the Guru has often answered such questions with that phrase, but went on to list the considerations to review in making the judgement.

You need to build toward a reach goal, not pull it out of your hat. There is no piece of science that makes one specific reach number correct as an abstraction.

If some level of ad awareness is your real goal, the reach must be at least as high as the awareness level desired: people must see an ad before they can become aware of it. If you believe that it takes three exposures to a campaign before the consumer is consciously aware of the campaign then the awarenes level becomes the 3+ reach level, and a total (1+) reach level may be inferred from that.

If you follow recency theory, you will evaluate the continuous levels of reach delivery affordable in possible media options.

So "enough" is not simply "enough," it must be enough to accomplish a specifed goal of awareness, sales, image change, etc.


Tuesday, November 16, 1999 #2977

Details of Ostrow's effective frequency model

 

The Media Guru Answers(Sunday, November 21, 1999 ):

The Ostrow model aims at establishing the minimum level of frequency to be deemed effective so that the plan can maximize reach at that level of frequency. The model can be traced back to his speech, "Effective Frequency" at an Advertising Research Foundation Key Issues Workshop, June 4, 1982.

Typically, the model involves evaluating a series of relevant factors on a scale of say, 2 to 6, and averaging the factors to determine the appropriate level of frequency to set as effective.

In the 1982 speech the factors discussed were of three kinds: marketing, message / creative and media.

Marketing

  • Established brand vs new entry
  • Brand share
  • Brand loyalty
  • Purchase cycle
  • Usage cycle
  • Share of voice
  • Target group learning capacity

Message / Creative

  • Complexity
  • Uniqueness
  • New vs continuing campaign
  • Image building vs specific sell
  • Message variation (copy pool)
  • Wear out
  • Copy unit size/length

media

  • Clutter
  • Editorial / program environment
  • Attentiveness
  • Continuity vs flighting
  • Number of different media
  • Repeat exposure opportunities
.

For the full speech, the transcript proceedings of the workshop are available from the Advertising Research Foundation InfoCenter For details about the InfoCenter, call 212-751-5656, extension 230.


Tuesday, November 09, 1999 #2945

I have chosen to do my thesis( post graduation in communications) on exposure distrbution models in print and television media. I am really keen on finding out more about the following topics: Beta Binomial Distribution Sequential Aggregation Distribution Dirichlet Multinomial Distribution Hofmans Beta Binomial Distribution Conditional Beta Distribution I have been through " Reach/Frequency Estimation for the -the Internet World Wide Web" by Jongpil Hong . I do have access to journals on campus but am facing a problem gathering information on conditional beta distribution ( Kim Heejin,1994) and sequential aggregation distribution (Lee, Hae Kap, 1988). On surfing the net i also visited - http://www.utexas.edu/coc/admedium, checked out the demo on frequency distributions. To further my study in this area i would be grateful if you could guide me as to how to access these doctoral dissertations.Also any help and guidance on other information sources will be deeply appreciated.

 

The Media Guru Answers(Tuesday, November 09, 1999 ):

The Guru would expect to find doctoral dissertations available at the universities where they were delivered.

Advertising Research Foundation InfoCenter For details about the InfoCenter, call 212-751-5656, extension 230. has the best compilation of advertising research studies.

The New York Public Library's Science, Industry and Business Library also has a great deal of this material.

There is also a dissertation abstract and search service at UMI


Monday, October 04, 1999 #2843

Guru - I have been put in the situation of planning, negotiating and buying online advertising. I'm having difficulty in determining the appropriate number of impressions to purchase for a two week flight of an entertainment property. I understand every site is different, but is there a benchmark to follow? Someone once said that the minimum level of impressions to be effective is 10% of the site's available impressions. This seems high. Also, is there a syndicated source that lists the total number of impressions available per month? Can online impressions be purchased against a specific demo (i.e. Men 25-54)? Thank you for your help.

 

The Media Guru Answers(Monday, October 04, 1999 ):

There are many buying-minimum rules of thumb that seem arbitrary on first consideration, like '12x per week per station' in radio, but have a logic if someone clearly explains it.

However, this "10% of the available impression" idea is certainly not one of these. It's not only arbitrary, but relatively ridiculous.

Consider a site like Yahoo, which may generate well over 1 billion monthly impressions. 10% of that is 100 million. If you bought that weight at a $30 CPM, that would be $3,000,000 per month. Are there many advertisers spending at that rate? And, if you think about other top sites, it becomes even more fantastic.

According to Nielsen//Netratings, top, deep-pockets, online advertisers like Microsoft, Amazon.com. AOL and Yahoo each ran about 200 to 600 million impressions in August. And of course, they didn't do that on just a few sites.

What would a 10% rule achieve? Identification with a specific site? Perhaps some very targeted sites which fit your campaign creative very well are worth sponsoring at this level. Or do you think each person exposed is aware of how many other people are seeing other banners on the same site?

By the way, the Guru would be interested to hear anyone's justification of a '10% of available impressions' rule and will post here any that make sense.

It's also worth noting another point here: Bigness is of questionable value in selecting on-line media vehicles. exposure isn't figured in the same way as for other media: In a magazine, each ad page is treated as if it had the average audience of the issue; within some tolerance, this is realistic. But in a popular web site with potentially hundreds of pages, neither the home page nor those within the site get all the monthly impressions the site accrues. Any one page might get less than one percent of the total, and a rotating banner might get less than one percent of the page where it's shown. One million impressions can be bought from a site with one billion to sell or with just two million. If the targeting is controlled, there is equal value.

Sometimes page or section content will allow targeting to be assumed. On some sites, registration data, or 'cookies', or IP tracking can allow ads to be served to specified categories of visitors.


Tuesday, September 28, 1999 #2831

Is there a documented research/ benchmarks followed which indicates a) how long (in units of time and GRPs) should a TV commercial last before fatigue for that commercial sets in. b) Is this likely to be different for FMCG or durables? if yes, how much? Thanks, Praveen

 

The Media Guru Answers(Tuesday, September 28, 1999 ):

There have been many studies, most of them proprietary. The variables are too many to be generally applicable: Commerical length, quality, recall, enterntainmnet/annoyance value, number of executuions in rotation, etc. The differences in cultures and media environments probably also have an effect.

Some set a standard based on quintiles of exposure, others on GRPs.

The major compilations of publicly available research are at ESOMAR, the European Survey, Opinion and Market Research Organization and Advertising Research Foundation InfoCenter.


Monday, September 27, 1999 #2830

I have read all your responses regarding recency. If you wouldn’t mind answering a few more, this is a multiple question predominantly regarding recency as a planning theory. 1) What Telemar program deals with TV R&F on a weekly basis? 2) Do the same audience accumulation formulas work for a one-week cume vs. 4wk or 52 wk? 3) When now planning an a weekly basis rather than a flighted basis are frequency guidelines or goals a consideration in the recency planning theory? 4) Has there been a clear industry swing relative to EF or recency yet? 5) A 1997 JAR article by Erwin Ephron cited some minimum target reach guidelines like 35 weekly, 65 four-week and 80 quarterly. Has there been anything more definitively determined since then (I noticed reply 2631 7/14/99 lowering the weekly reach to 30)? 6) For those espousing recency, is the trend to a 52 presence or extended flighting like 8-10 continuous weeks of each quarter? 7) On the Effective Frequency side, where the defacto goal has centered around the 3+ level, has the time frame shifted to anything other than a 4-week period?

 

The Media Guru Answers(Wednesday, September 29, 1999 ):

1) media Maestro and TV Buyer handle TV R&F.

2) No, formulas differ for one week, 4 week, and long term. 400 GRP, spread ove differend programs might come close to exhausting the reach potential of one week's TV audience, but not if spread over 4 weeks or longer.

3) Recency planning is focused on weekly reach, and incorporates the concept that every exposure after the third one is at the 3+ level.

4) Some have adopted recency, some cling to effective reach. The Guru is not aware of any polls of agencies or advertisers, but suspects that recency is still growing in acceptance, but is a minority approach.

5) The reach minima are a bit loose, and 30 vs 35 is not a major point of contention.

6) The idea of recency is that being there whenever a purchase decision is made is ideal. Flighting, when continuity is affordable and there is no major seasonality is contrary to the principle.

7) Four weeks has always been somewhat arbitrary, likley stemming from the one-time dominance of monthly magazines. But it is a convenient benchmark. A logical approach can set a level other than 3+ or other than 4 weeks, etc.


Wednesday, September 22, 1999 #2814

Hi Guru The ad agency I work for has a theory that cable GRP's and radio GRP's effectivenesss are significantly less than network and spot television. On our flow charts we only calculate 1/2 half of these points. I have heard this theory before but I've never seen a plan that cuts the GRP's in half. What do you think?

 

The Media Guru Answers(Thursday, September 23, 1999 ):

The Guru has been aware of theories that use effectiveness factors in comparing media. Sometimes GRP are adjusted on the flow chart, but since the flow chart often serves as the buying control document, more often the adjustments are shown in reach and frequency comparisons.

There can certainly be an argument that radio has less effectiveness than TV, commercial exposure versus commercial exposure, all else being equal. But, the argument doesn't seem to be rationale for cable TV. The commercial is the same, the presentation is the same. Unless there are objective measures of attentiveness or clutter or recall used, why is cable less effective? Individual commerical audience size is not relevent to message effectiveness of the medium; one consumer is not aware of how may others are watching the same program.


Monday, September 20, 1999 #2808

Hi Guru!For maintainence level of advertising for an established brand, on TV why is an OTS of three considered to be a minimum ? Or does no such rule of thumb exsist?

 

The Media Guru Answers(Monday, September 20, 1999 ):

The 3x rule-of-thumb is based on studies dating back over 100 years to a researcher named Ebbinghaus. He determined that it required 3 repetitions of a string of nonsense syllables for them to be retained by experimental subjects.

Advertising researchers extended the research to posit that only after three exposures to a message would a consumer understand, recall and be prepared to act on the information. media planners then started using an average frequency (as in "Reach and Frequency") of 3 as a minimum.

More recently, the concept of effective reach has used the theory that only those exposed at least 3 times should be counted as "effectively reached." So, for example, a media plan with an average four week reach / frequency of 76 / 5.2 might reach 50% of the target 3 or more times.

Some planners will evaluate several issues surrounding the copy, competition and media options to decide what effective level is appropriate and set a level of 4 or 6, etc. Of course, this is meaningless without also setting a reach goal at the stated frequency level. A plan that delivers 50 reach at 3+ might also deliver 42 at 4+, 33 at 5+ etc, so there is an issue of the goal versus the level at which the plan is examined.


Sunday, August 15, 1999 #2719

Those selling web advertising cite recall statistics --- recall of web advertising versus television advertising. I personally do not think that you are able to make an apples to apples comparison between the two as the mediums are so very different. Those who are surfing the world wide web are there for a reason and more inclined to tune out much advertising --- as opposed to television which is more a passive medium. Are there any studies or statistics that speak to this subject?

 

The Media Guru Answers(Monday, August 16, 1999 ):

The Guru agrees that web users more readily tune out ads than do TV viewers. But that is why recall is a useful measure. It lets you know what the person exposed retains from an ad exposure. If the tested exposures are "real-world" and not in a an artificial laboratory situation, the Guru believes recall is a valid metric. AOL did some research along these lines and the results should be posted in their media kit area. It was also reported in Ad Age.


Wednesday, July 14, 1999 #2630

I am looking for research / answers to the question: "How affective is Airport Advertising?" In particular with reference to Business Class

 

The Media Guru Answers(Wednesday, July 14, 1999 ):

The Guru doubts that effectiveness research has been done which segments the Airport advertisng audience according to the class of service used on the day of exposure. If ant exists it would probably be available from the Advertising Research Foundation InfoCenter For details about the InfoCenter, call 212-751-5656, extension 230.

Othe possible sources are ESOMAR, the European Survey, Opinion and Market Research Organization or the airport advertising media mentioned in past Guru responses


Tuesday, June 08, 1999 #2562

I have an outdoor question. If showing size refers to the reach per day, i.e. 25# reaches 25% of a market per day, why aren't the estimated TRPs per month simply 25 x 28 = 700. Most studies I see quote a lower TRP level for a 25 showing. What gives?

 

The Media Guru Answers(Wednesday, June 09, 1999 ):

The Guru has come across this problem and found the answers.

There are two answers, one sensible, one nonsense, but both real.

Sensible: The "25 showing" is a standard number of panels, based on 25% of adult population. So if your target is Women 18-34, there may be a different number of women 18-34 GRPs in a showing actually bought as 25 Adult 18% GRPs. This is perfectly sensible, and happens ain all media, but the sellers and buyers of other media are fully conversant with these facts.

Now for the nonsense answer, which is most likely the basis of the number you were given. Various research companies, such as MRI have measured outdoor as part of multimedia reports and these generalized reports are being used to estimate target reach for a marketpace showing. Often a completely different source for average frequency is used and these two factors are multiplied to calculate GRPs. It seems invariably to be much lower than the GRPs you would get by the realistic method first described, and so makes outdoor seem less efficient than it should.

The misused sources could, instead be used to provide relative exposure indices between demographics, allowing a simple conversion of GRPs. The Guru hopes the Outdoor industry improves in this area.


Saturday, May 29, 1999 #2543

dear guru, i have a few qs regarding print advertising what is the meaning of the term 'far forward positioning'? the fps or the front page solus position of a newspaper is supposed to have very high OTS, is there some solid research evidence backing this claim? like the fps are there any other postions in newspapers that pull best? if there are once again what evidence is there in this regard?

 

The Media Guru Answers(Saturday, May 29, 1999 ):

Far forward positioning very simply means a postion in the first few pages of the issue, at least first third. It is assumed there is a better chance of exposure in these pages. It's a common U.S. usage, but the Guru is concerned about semantics, since you are writing from India and most of the terms you are using appear to be U.K. media jargon.

Covers, opposite back cover, opposite table of contents and opposite first editorial feature, are all considered good magazine positions.

In newspapers, section front pages and section back pages are considered valuable. For research, visit The Newspaper Advertising Association and Newsweek media Research Index or their equvalents in India.


Friday, April 16, 1999 #2454

What would you say are the three keys to determing timing and selecting geography, when developing a media plan?

 

The Media Guru Answers(Friday, April 16, 1999 ):

Timing:

  • Seasonality: Is there a time when the product is more likly to sell?
  • Is the purchase cycle of the product such that low level continuity is more likly to deliver the exposure closes to purchase decision?
Geography:
  • Determine the level of media weight needed to be effective, however you have defined effective.
  • Rank markets by opportunity to sell -- this can be merely size or based on development index, efficiency indexed to size, etc.
Build up the coverage area geography from the top of your opportunity list down, as far as you can afford the media weight you have set, within the timing you have set.


Tuesday, March 30, 1999 #2421

The need: I am looking for a way to factor 'page exposure' data into mainstream media metrics such as CPM or GRP. MRI tracks and calculates page exposure using the following: (#_of_days_magazine_is_read * #_issues_read * %_of_pages_read)= avg_page_exposure I believe such data would not only provide a more accurate picture of a readers exposure to the ad pages but could alter CPM & GRP rates. My Reasoning: CPM=(ad_rate/audience); audience=(circ * readers); 'readers' is thenumber of different set of eyes per issue (single exposure). This number does not take into account how long or to what extent the reader looked at the publication -- it could be the mailman delivering the magazine who remebers the cover or it could denote a subscriber who reads the issue cover to cover. Enter the issue of page exposure. Suppose I am considering a magazine with a CPM of .01851 = 40,400/(704,000 * 3.1). However, if this same magazine provided me with a page exposure rate of .99 = (3 * 1 * .33) -- which says that the audience takes 3 days to read the issue and reads about 33% of the issue a day (which I know is unrealistic, but hear me out). Now suppose I take the .99 exposure rate and add it to the 'reader' and recalculate CPM --- 40,400/(704,000 * (3.1 +.99))= .01404 -- I get a much lower CPM. My Question: Why can't I make this type of calculation with page exposure data -- where is the break down in my logic or math? Any insights would be GREATLY appreciated. Thanks in advance!

 

The Media Guru Answers(Thursday, April 01, 1999 ):

First, overall, yes it is a reasonable and not unusual concept to adjust CPM according to additional measured factors reported for magazines. However, there are some minor and some major issues with your process in terms of labels and decimal places, etc.

Yes, CPM is ad rate ÷ readers. Readers is circulation times readers per copy (refer to the explanation of MRI information which the Guru did for you in query #2403).

So the basic CPM -- cost per thousand impressions -- in your example is actually $18.51, assuming you mean $40,400 is your ad csot, 704,000 is circulation and 3.1 is readers per copy.

The exposure rate is a factor, not an add on. So the adjustment would be 3.1 times 0.99 or 3.069 or virtually no change. The cpm is now $18.70. If there was a very different page exposure factor it would make a difference. It is a valid way to reaxamine CPMs.


Thursday, March 25, 1999 #2412

1) Are the terms OTS, impressions, hits and exposures interchangeable? 2) Are there media industry norms (or even studies) that indicate a correlation between a number of OTS or exposures and audience (reader) behavior. I understand there were a number of Politz studies conducted in the 60s which suggested that one exposure produced a dicernible response and two exposures produced about double that response. Also there are European reports stating that a magazine ad should provide at least 5 OTS in order for the reader to digest or understand the ad message -- is '5' the number? Are there industry norms, and if so, do they differ by media vehicle? Thanks in advance!

 

The Media Guru Answers(Friday, March 26, 1999 ):

1) Other than "hits," you may generally consider those terms interchangeable. "Hits" is a much abused term peculiar to the internet. Some people do use it when the mean impressions, but technically "hit" is defined as "an entry in a server log."

Whenever a visitor requests a page on a site, as by clicking on a link, the server log records a "hit" for the text of the page, and hits for each frame and hits for each little bullet or other icon and a hit for each ad. A single page on one of today's commercial sites may consist of several dozen items which would all create "hits" in a server log when only one page impression is happening. The internet is also unique in its ability to serve content with a different ad each time a new user arrives at a page. So page impressions and ad impressions will not agree as they do in magazines or broadcast.

"Hits" originated in the early days of the world wide web, when browsers read text only, like the venerable "Lynx," and a page was just one block of text, so "hit" then equalled "impression," more or less. Hits include server log error messages as well, which are of no value to anyone.

2) The study of effective numbers of exposures goes back at least as far as the scientist Ebbinghaus (1883) who tested how many repetitions of nonsense syllables were required to achieve learning. This was the origin of 3 as a magic media number there have been infinite numbers of other studies, more advertisng and sales focused since.

Note that European media and Europe's media environment are different than the U.S. It is a common trap to assume that media perform the same tasks with the same effectiveness when used in different cultures. The U.S. Hispanic market is a good exanple, with TV, radio and print all delivering very different reach / frequncy, reach potetial and overlap than do the parallel general market media.

The best source of studies on the topic are: Advertising Research Foundation InfoCenter, Newsweek media Research Index and ESOMAR, the European Survey, Opinion and Market Research Organization. The Guru has discussed this frequently.
Click here to see past Guru responses about "effective frequency"


Tuesday, February 09, 1999 #2315

Do you have an opinion on the media weight required to revitalize an ailing brand (a former success story which has been performing poorly of late). Should we stick to conventional weights, or heavier weight to try to make more powerful impact?

 

The Media Guru Answers(Tuesday, February 09, 1999 ):

Questions like this come up so often, and lead the Guru to ask more questions:

  • How sure are you that the Brand's troubles stem from the advertising weight rather than the advertising copy or product attributes or competitive pricing or competitive quality?
  • What levels are competitors using?
  • What media are competitors using?
  • What media will you use?
  • etc.

A simple answer, when you believe advertising weight or exposure of a new message is the core issue, is that you must deliver more impressions than the competition, by a noticable margin, say 20%.


Friday, January 22, 1999 #2285

Dear Guru, This is a bit of a theoritical problem.I am currently working on a shaving cream brand which has been on decline for a few years now. Currently it has a market share of 3.9% and is ranked 7th.The markets where it is doing relatively better are actually the smallest markets, but here too, it is not better than 5th on market shares. It has a media budget which is about 1/5th of the biggest spender, which incidentally is not the market leader. My dilemma is - in the given scenario, for a relaunch, where should media focus be - on the overall smaller markets but where the brand is but marginally stronger or on the bigger markets for the category, where a greater potential lies ? The distribution strength is the same in all markets and no directions have been provided by the marketing team on priority markets. Thank you Guru. My name is Abu Huzaifa and i am media planner in Bombay, India.

 

The Media Guru Answers(Friday, January 22, 1999 ):

Firstly, these are really marketing issues, not media issues, but to try to look at it from a purely media perspective, consider:

Think beyond the "bigger opportunity of the larger markets," because the impact you can deliver in a market is important. In other words, do you get more consumer response to 100 GRPs against 2 million people or 200 GRPs against 1 million people?

For example:

1. Assume that every impression delivered, no matter the market size, has the same potential to generate sales and / or share growth - where will your budget buy the greatest number of impressions?

2. Assume that the ability of the impressions to generate sales growth is influenced by current share of market. Estimate the value of this effect, plus or minus. Apply this weighting to the impressions you can buy and recalculate sales potential, according to paragraph 1.

3. Or assume that every exposure after the third one (or a level of your choosing) is some degree more effective. How many "effective impressions" can you deliver to each market set?


Monday, January 18, 1999 #2275

Dear media Guru: How would I go about analyzing the benefits of advertising on national cable TV vs. spot TV? For example: a retail store has locations in only 8 DMAs and therefore only buys local time in those markets. Is it feasible to compare the out-of- pocket costs of a local buy vs. a national buy? Would the wasted exposure outside of the 8 DMAs outweigh the cost efficiencies of a national buy? Are there any - simple - models that do this? Thanks for your help.

 

The Media Guru Answers(Tuesday, January 19, 1999 ):

This should be very simple. According to your question, only impressions delivered within your 8 DMAs have any value.

So, for a given amount of money invested in national cable and the same money invested in local cable, which will put more impressions into your 8 markets?

If the 8 markets are fairly large, it could be easy for the national buy to be less costly.

It also depends on the system structure of the markets. Some markets are served by just one or two systems and can be purchsed more efficiently than markets, like NY, for example, which has dozens of systems. By the same token, it can be more expensive, out-of-pocket, to buy just a segment of the NY market, like northern New Jersey, than to buy all of the DMA, because of price structure oddities.

At any rate, "waste" isn't your issue, the issue is what value do you get for your investment.


Friday, December 04, 1998 #2198

Dear Guru. Thank you for your answers - they are very helpfull to me. My question is on "recency". 1.What groups of products best fit for "recency" planning. 2."Recency" planning needs continuity. But it is not evident what frequency level is needed at every moment of such continious ad campaign. It seems reasonable to set more frequency at the launch period and then decrease frequency for mantainance. Also we should take into consideration seasonality. Thus our campaign becomes pulsing but not continious. What are your comments? Thank you very much.

 

The Media Guru Answers(Friday, December 04, 1998 ):

1- Recency seems to best fit common products that are bought regularly; in other words, a purchase is stimulated by running out of the current supply. This means food and HBA products, primarily. More "considered purchase" products, like automobiles, may not be a good fit.

2- Erwin Ephron, principal proponent of Recency, has commented to the Guru that about 30 reach on a weekly basis is a threshold level. This might mean 50-60 GRP depending on the media used amd target.

Part of recency theory, in relation to frequency levels and effective reach, is that after three exposures have been delivered, every subsequent exposure is supported by adequate frequency. Recency generally applies to brands with established awareness; when you raise the issue of product introductions, it is a different situation.

Seasonality is the principal exception to recency. There is no point in delivering the most recent ad exposure at a time when no purchase is likely. It is important to distinguish products with seasonal fluctuations, like deodorant, from products with very specific seasons, like barbecue charcoal.

Also consider that Recency does not mandate even levels in its continuity. The weight can be raised above the threshold when appropriate.


Wednesday, December 02, 1998 #2194

Dear Guru, can you name any media analysis tools and media predictive tools that media planners use on a regular basis without being too technical, of course. Many thanks

 

The Media Guru Answers(Thursday, December 03, 1998 ):

Here are several:

  • Reach: the number of different target households or persons exposed to a campaign (most often expressed as a percentage of the target universe, and most often calculated over a 4-week period).
  • Frequency: The average number of exposures of the campaign to those reached.
  • Gross Rating Points (GRP) / Target Rating Points(TRP): Essentially interchangeable terms for the sum of the audiences of all the ad units in the campaign, expressed as a percentage of the target universe.
  • Gross Impressions: Same audience count as GRP/TRP but expressed in whole numbers rather than percents.
  • CPP / Cost per GRP and CPM / Cost per thousand impressions: should be self evident from the previous. These are referred to as the "efficiency."
  • Effective reach: Those in the "Reach" who experienced a specified minimum number of exposures (effective frequency)

All the above stem from the audience research tools and investment figures. So called "reach and frequency" systems typically generate all these figures.

Other tools, especially in print media are also occasionally used. These may include "time spent with" media vehicles, "page openings", attentiveness, etc.


Tuesday, October 06, 1998 #2074

Dear media Guru, Please refer me to articles on media models to arrive at optimum desirable frequency / OTS / # exposures. Thanks. softcheries@hotmail.com

 

The Media Guru Answers(Tuesday, October 06, 1998 ):


Monday, July 06, 1998 #1937

Dear Guru, I'm trying to find info on the relationship between reach and frequency known as the prime axiom in media planning. Such as, what it is, why is it useful and how is it directly or indirectly measured? Also, I need research on the volatility of broadcast media. For instance, how can broadcast media avoid law suits if they fail to run a commercial. I'm frantically completing a take home exam for a graduate class and can't find research on these topics. Any help you can give would be greatly appreciated. I'll let you know if we get an "A."

 

The Media Guru Answers(Tuesday, July 07, 1998 ):

One wonders at the sort of course where these terms matter but are not thoroughly taught. Reach and Frequency are the weights and measures of a media plan.

  • "Reach" tells you how many different people are exposed to an advertising schedule. It is commonly expressed as a percentage of a target group's population. E.g. 75 percent reach among women 18-49.
  • "Frequency" tells you the average number of exposure to the schedule experienced by the people reached.
The usefulness should be obvious: no matter how great or impactful an ad may be, it will not sell product unless it reaches enough people and reaches them frequently enough to have an effect on their behavior.

The various research tools media planners use which measure the audience of TV shows, radio stations, magazines, etc can also tell us how many people are reached by schedules of several uses of theses programs and books. From these direct measurements, statistical models are built which can estimate the reach and frequency of schedules being planned. media Planners can therefore compare alternate schedules to determine which ones will best meet reach/frequency goals.

Thinking of pure arithmetic relationships, reach and frequency are linked with GRPs -- Gross Rating Points. When the ratings (audience as percent of target group) of all the individual ads in a schedule are added up, the resulting total is GRP. GRP divided by reach = frequency and reach X frequency = GRP. 2. Mistakes happen. Fine print in contracts protects broadcasters against liability if they inadvertently miss airing a commercial, or deliberately do so because a higher paying advertiser comes along, or because the decide to air a news special. etc. Their only obligation is typically to give a "makegood," another commercial location with equal or better quality.


Wednesday, June 03, 1998 #1882

how much more effective is an exposure on print compared to TV in case of consumer durables?

 

The Media Guru Answers(Wednesday, June 03, 1998 ):

A TV exposure is generally more effective than a print exposure. However:

  • There can be very bad TV executions and very good print executions, which outweigh the general rule.
  • A TV :15 may not be more effective than a 4 color bleed gatefold off the 2nd cover.
  • media plans don't usually operate in an exposure vs exposure mode. A given budget might buy 25 TV exposures for every print exposure or vice versa, depending on ad units, programming, geographic coverage, etc.


Saturday, April 11, 1998 #1564

Dear Guru, could you please tell me how can I calculate the frequency(exposure) distribution of an advertising media schedule using the Sequential Aggregation, Cannonical Expansion and Conditional Beta Distribution models? Thank you in advance for your answer.

 

The Media Guru Answers(Friday, April 17, 1998 ):

A good university or public business library should have statistical or advertising methods text books with this information.

For example, in NY City, the Public Library's Science, Industry and Business Library has such books and might even give you the specific references to locate copies near you, if you inquired by phone or e-mail.


Monday, October 27, 1997 #1445

Dear Guru, We have been talking (within the Agency) about a new concept which is median frequency ( not average!): The goal of this mesurement tool is to determinate the wear-out level of commercials. Have you ever been across with this subject? Thanks!

 

The Media Guru Answers(Monday, October 27, 1997 ):

First, let's define "median Frequency"

You seem to mean one would array all those exposed to the commerical in order of their frequency of exposure.

Then find the person at the exact middle of the line; one half of those exposed have less frequency and one half of those exposed have more.

It would actually be "less than or equal to" and "more than or equal to," since we are now dealing with discreet individuals, who therefore have a whole number (an integer) of exposures. In the thousands of people exposed, many will be at the median level of exposure

The Guru has not seen this metric used for wear out analysis before, but it seems neither better nor worse than the more common use of quintiles, i.e. looking at the top 2 quintiles, or most heavily exposed 40% of audience.


Thursday, June 19, 1997 #1366

Dear Guru, I have a set of urgent questions to ask of you. I have a meeting tomorrow, and need your help! 1. How is effective reach calculated? 2. Reach v/s Frequency -- when should one be given priority / importance over the other? 3. Is there any way of taking creative into account while analysing competition? If yes, can a system of weights be worked out? 4. How do you reconcile to the vast difference between reach/frequency deliveries from a Peoplemeter system as opposed to the Diary system? My client refuses to accept a 4+ reach of 30% being accustomed to levels of 70% for the same plan! Would greatly appreciate your immediate reply.

 

The Media Guru Answers(Thursday, June 19, 1997 ):

1) In any schedule of several commercials, some of the target group will see only one, some will see two, some will see three, some will see four, some five, etc, etc.

The actual measurement is based on tracking the cume of several different advertisers schedules in a single measurement period such as one month of the PeopleMeter.

A mathematical model that will match the measured GRP/Frequency is calculated so that plan deliveries can be predicted. Going more deeply into the actual measurement, it can be determined how many people of each demographic group were exposed to each commercial in the schedule and a model calculated which will predict that performance for a plan.

For example, below is the typical output of a computer models' frequency distribution, showing what percent of the target saw exactly n commercials and what percent saw n+. (this example is from Telmar's ADplus):

                    Frequency (f) Distributions 
                           ------------------------------------- 
                                  % who saw
                                 ---------------
                          #seen exactly  at least     
                          ----- -------  -------
               Target:      f     rch    rch    
               P18-49      ---   -----  -----   
                            0     69.1  100.0   
                            1     11.5   30.9    
                            2      6.0   19.3    
                            3      3.7   13.4   
                            4      2.6    9.6   
                            5      1.8    7.1    
                            6      1.3    5.2   
                            7      1.0    3.9   
                            8      0.7    2.9   
                            9      0.6    2.2   
                           10+     1.6    1.6   
                           20+     0.0    0.0    

2) Reach vs Frequency: The determination of emphasis here can be a complicated analysis making up the greater part of a plan's documentation, under the heading of "communications strategy." A commercial so powerful that it's sell is overwhelming in one exposure might take the "Let's buy one spot in the Superbowl" route as did the Macintosh computer with the classic "1984" execution.

In more competitive situations, competitors' levels are taken into account, clutter in the media of choice, copy quality, etc. Obviously a balance must eventually be struck between reach and frequency based on judging all these factors.

3) There are several ways to take creative into account while setting up reach vs frequency goals;

The complexity or simplicity of the message

The number of commercial in the pool

how close your commercial is to the established "wear-out" level

The balance of :30 to :15

etc, etc. can all be assigned factors and totalled or averaged to give a reach vs frequency emphasis factor

a similar exercise can also set effective frequency thresholds

4) There should not be "vast" differences between effective reaches based on people meter and diary systems if schedule GRP and other aspects are the same. 5 or 10% would be the range the Guru would expect.

A plan with a 70 reach at the 4+ level would be delivering in the range of 98% total reach. It sounds as if your client may be confusing a plan with 70 reach and an average frequency of 4 with 70 at an effective frequency of 4. Or perhaps confusing 4-week reach with a long term cume?


Wednesday, March 19, 1997 #1015

What are the going numbers for total ad exposures per person per day? Is it possible tobreak down the average into the different media?

 

The Media Guru Answers(Wednesday, March 19, 1997 ):

The Guru has seen estimates from a few hundred to many thousands.

The Guru tends to go along with one of the best accepted estimates, that there are about 245 ad exposures daily, 108 from TV, 34 radio and 112 print.

Others estimate 3000, 5000 or more. Even the 245 is "potential" and perhaps only half are real exposures.

The higher estimates probably include all marketing exposure including being in the vicinity of product labels or actual products with trademarks visible, such as your car, computer, fax, phone, shirt, pencil, paper towel in the bathroom, etc.

Just think, if we were really exposed to 3000 advertising messages per day, at an average of just 10 seconds apiece (accounting for radio :60's and brief exposure to billboards), these exposures would consume 8.33 hours out of our 16 waking hours per day.

The Guru is sceptical.


Wednesday, March 19, 1997 #1016

What are the going numbers for total ad exposures per person per day? Is it possible tobreak down the average into the different media?

 

The Media Guru Answers(Wednesday, March 19, 1997 ):

The Guru has seen estimates from a few hundred to many thousands.

The Guru tends to go along with one of the best accepted estimates, that there are about 245 ad exposures daily, 108 from TV, 34 radio and 112 print.

Others estimate 3000, 5000 or more. Even the 245 is "potential" and perhaps only half are real exposures.

The higher estimates probably include all marketing exposure including being in the vicinity of product labels or actual products with trademarks visible, such as your car, computer, fax, phone, shirt, pencil, paper towel in the bathroom, etc.

Just think, if we were really exposed to 3000 advertising messages per day, at an average of just 10 seconds apiece (accounting for radio :60's and brief exposure to billboards), these exposures would consume 8.33 hours out of our 16 waking hours per day.

The Guru is sceptical.


Tuesday, March 18, 1997 #1017

What are the going numbers for total ad exposures per person per day? Is it possible to break down the average into the different media?

 

The Media Guru Answers(Wednesday, March 19, 1997 ):

The Guru has seen estimates from a few hundred to many thousands.

The Guru tends to go along with one of the best accepted estimates, that there are about 245 ad exposures daily, 108 from TV, 34 radio and 112 print.

Others estimate 3000, 5000 or more. Even the 245 is "potential" and perhaps only half are real exposures.

The higher estimates probably include all marketing exposure including being in the vicinity of product labels or actual products with trademarks visible, such as your car, computer, fax, phone, shirt, pencil, paper towel in the bathroom, etc.

Just think, if we were really exposed to 3000 advertising messages per day, at an average of just 10 seconds apiece (accounting for radio :60's and brief exposure to billboards), these exposures would consume 8.33 hours out of our 16 waking hours per day.

The Guru is sceptical.


Thursday, February 27, 1997 #1031

1. Assume a multi-media presentation in a large metropolitan shopping mall drawing 20 million shoppers per year. How would you approach the valuation of advertising in such a forum for major brands? 2. If there were 20 Million visitors, what model would you use for calculating exposures to any particular piece of advertising - such as an illuminated interior billboard - or a ten minute show, which shoppers viewed with both entertainment and brand promotional content? 3. Finally, what would a major brand - such as a top athletic shoe or fashion concern - pay per year to have their brand creatively presented at the point of sale in a shopping mall with 20 million potential visitors, including children? Ballpark?Guru, I am a media novice. Please help. Thanks for your assistance.

 

The Media Guru Answers(Thursday, February 27, 1997 ):

Major Malls count not only total visitors, but foot trafficpatterns through the mall, and can usually give you traffic pastkey points.

The traffic past your display area, divided bythe time slice allotted to a piece of advertising will give areasonable audience estimate.

Out of home media may chargein the neighbourhood of $5 per thousand gross audience, whichgives you a $100,000 price.

Whether you can convince theadvertisers of the greater value of the multimedia element isquestionable. The Guru thinks you most difficult task isdemonstrating the entertainment value or stopping power of youradvertising, especially considering that the 20,000,000"visitors" to your mall may be just 1,000,000 averaging 20visits apiece.


Sunday, July 07, 1996 #1185

I am convinced that with a limited budget it is necessary to reach "effective" reach levels at a given period of time rathe than spread thos dollars throughout the year to achieve low levels but high coninuity. I am working in the Automotive field. Please help me. I need specific documented research studies on effective reach!!!

 

The Media Guru Answers(Monday, July 08, 1996 ):

It isn't clear what your query is. Many people continue to feel as you do. In recent years, many others have espoused the "propinquity" theory which advocates continuous low levels, based on the idea that the single exposure closest to a purchase occasion is the most effective.

There has been considerable trade publication comment on the matter, most often by Erwin Ephron, probably the leading proponent of propinquity. A recent Advertising Research Foundation workshop devoted considerable attention to this issue, and the proceeding of that conference should be available from the ARF. There have been opposing positions, in agreement with yours, published as well, one of the earliest by Abbott Wool in media Week shortly after Ephron's first publication of the theory.

The Guru has discussed this before, so using your browser's "find" function to scan this page and the Guru archives will provide additional material.

Surely the most archetypical exception to continuity is for the highly seasonal product, as automotive products may be.


Wednesday, May 08, 1996 #1224

I am composing my first interactive media plan for a regional bank client. It is a three month campaign. I am trying to set a monthly gross impression goal that would generate adequate on-line exposure for launching a pc based banking product. Any rules of thumb?

 

The Media Guru Answers(Wednesday, May 08, 1996 ):

You could try to "back into" your goal.

How many customers for the PC product would be considered a "success?"

What response rate can you expect from a web site?There may be some published infromation in the trades.

Suppose it's the 1 - 1.5% that's considered successful in some other direct response media. Divide your customer sign-up goal by the response rate to project needed site visits. For example, if you want 1000 pc accounts, 1000 divided by .01 (1%) is 100,000.

Is this realistic? If there are 10 million US households using the WWW (a mid range estimate) how many might be in the "regional" service area of your bank? We assume there is some need for a personal visit to the bank at some point in the process.

Let's take a generous estimate of 10%. So there would be 1,000,000 potential customers. You would need to draw 10% of them to your site to get the 100,000 vistors who would produce the 1000 accounts.

This certainly indicates that you would need a strong traditional media campaign to draw site visitors.

But, plug in your own numbers in the suggested process, and as the saying goes, "you do the math."


Tuesday, April 30, 1996 #1231

I'm working on a presentation on how media planning professionals go about determining a media mix, and how a percent of budget is allocated to each medium being used. It's a general presentation for a client who is not very familiar with media planning terminology or methods. So far my sources for info include a couple of similar documents that I and others that I work with have written in the past, and the media planning textbook (by Scissors). Do you know of any other RECENT sources of info, points-of-view, articles on this topic? Or have you answered a similar question recently? If so, please tell me the category under which your response would be filed (I have looked through several categories of your responses and did not see anything relevant to this topic). Thanks!

 

The Media Guru Answers(Tuesday, April 30, 1996 ):

In the broadest terms, the process may be thought of as

Marketing Goals ---> Marketing Strategies ---> media Goals ---> media Strategies ---> media Tactics, etc.

A very simple example:

A marketing goal of increasing the number of users of product X might lead to a strategy of converting users of competitive brand Y.

The media goal might then be to optimize reach at effective levels of frequency among a demographic group matched to current users of brand Y.

The media strategy to achieve this might then be built by examining various media mixes to determine which produce the best balance of effective reach for the budget, within the creative limitations.

Of course this is just one possible marketing goal, one possible strategy that might emerge.

There are many ways to set reach goals, to set minimum effective levels or decide to apply the recent "proximity" or "recency" theory of exposure.

In short, one doesn't decide on percents of media and see how it turns out, one decides which media will best answer the marketing and media strategies. Often, some creative decisons have precedence: if TV is designated as the "primary medium" because of communications ability, need to demonstrate, etc, then the strategy migh dictate putting all money into TV "until the effective reach curve is exhausted."

There are infinite ways to express and measure goals and their achievment. Some standard media planning software, such as Telmar's media Maestro, and Hispanic media Maestro, allow easy examination of various mixes, instantly showing how reach/frequency/effective reach change as budget or schedules are shifted between media by the planner.


Friday, January 19, 1996 #1781

I would like to know if in United State exist any research, about outdoor reaching people. If exist, could you give me an explanation, and any address to try to get more information. How an outdoor campaign is evaluated in U.S.? How many people reach, this kind of study. Thank you in advance

 

The Media Guru Answers(Friday, February 02, 1996 ):

There are measurement sytems and standards for outdoor media in the U.S. Outdoor (more generally called Out-of-Home media, to include buses, bus shelters, subways, etc) is measured in GRPs as are other media. Outdoor GRP's are measured on a per-day basis, while broadcast media are more often thought of on a per-week basis.

Therefore if one buys 100 Adult 18+ GRPs of outdoor posters, the daily audience exposures (circulation) are equal to the Adult 18+ population of the market area. So a 100 GRP buy is about 3000 GRP per month (100GRP per day x 30 days.

Typical reach systems will report that this level of outdoor delivers a reach in the 90% range with over 30 frequency. You may buy 50 GRP or 25 GRP, of course. Even at these levels reach is typically 80+.

Years ago we talked of "100 showing" or "50 showing" which was sometimes the plant operators rough estimate of 100 or 50 GRP and sometimes just a pricing basis.

Outdoor sales companies, such as Gannett (212) 297-6413 can provide scehdule-specific reach analyses.


Wednesday, December 27, 1995 #1804

what is the difference between general media and direct response television media? and would I ever recommend to my client DRTV as an inexpensive way of getting exposure?

 

The Media Guru Answers(Friday, February 02, 1996 ):

General TV and DRTV are different in the way they are purchased and in key aspects of the copy used. To qualify for DRTV, the copy usually must be selling something through an 800 telephone number. Mail is also possible, but the immediate nature of telephone response is preferable (900 number ads are typically under a different rate structure).

DRTV rates are usually based on half of the going rate for the time period. The concept of "going rate" is hard to pin down with any certainty, unless you are buying the same schedule at the same time as "general media." These half price schedules are typically in remnant time or relatively undesirable times late at night or early in the morning or weekends. They are also instantly preemptible. You can't rely on delivering a schedule of "50 GRP per week in prime and 75 GRP per week in early fringe" through DRTV.

General TV schedules are used to build awareness through planned levels of reach and frequency or timely impressions delivery during specific promitions or campaigns DRTV schedules are opportunistic buys, with each airing anticipated to generate a certain quata of responses for a product ready to sell at all times without specific timing issues.. DRTV advertisers often track resonse minute by minute to associate each call with the specific commercial airing responsible. This is in clear contrast with the awarenes building aspect of general media.

When your client measures "exposure" in reach or effective reach terms than DRTV is not an efficient way to get exposure. Those remnant timeslots are not reach builders.

A DRTV advertiser is generally selling something worth the investment in inbound telemarketing expenses for each 800 number order, and assuming a certain minimum of orders per airing. (You cant make money if a $5 an hour operator has to spend 10 minutes taking address, size, flavor and credit card info to sell a $2 item, unless you add $3 shipping and handling). This means it doesn't work for toothpaste, floor wax, soap or cookies, unless you're selling the $29 bag-o-groceries special.


Friday, November 03, 1995 #1826

Which approach to planning Cable Television is more useful, by daypart or by cable network?

 

The Media Guru Answers(Friday, November 03, 1995 ):

You must first understand that Cable TV, unlike network free-air television, is broadcast, in most instances, live Eastern Standard (or Daylight Savings Time.) What is primetime in New York, i.e., a program running from 8-9pm, is airing during prime access in Chicago, 7-8pm, and early fringe in Los Angeles, 5-6pm. Therefore, National Cable TV dayparts have no real meaning or value because of live time broadcasting. There is a much better way to effectively reach well targeted audience segments based upon target audience exposure to programming. Use Cable TV network profiles as they appear in various research documents such as Nielsen Cable Ratings and mediamark Research, Inc.'s annual survey, to determine which Cable TV networks attract which audience segments. This approach will provide meaningful information based upon the measured Cable TV viewing preferences of the full range of demographic groupings. Furthermore, the daypart based Cable TV planning systems which are available, are built around the audience accumulation curves developed by The Cable Advertising Bureau, and as such they are general, so as not to play up the strengths or weaknesses of any specific cable network. In summary, if confronted with a daypart vs a network specific system for cable planning the latter is preferable.