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Fusing
samples by MultiBasing
The half-life of change
The
organizing principle of life has always been change. Science sometimes
expresses change in terms of half-life, the amount of time it takes
for half a substance to be eliminated by another organism and replaced.
For example, the half-life of molecules that make up tissue in the
human body is less than two weeks. That's barely enough time to
get to the next paycheck. The 95% life of brain molecules is a little
less than three months, while over three million red blood cells
in our body are replaced every second. So if you are just now wrapping
your mind around a new idea like fusing samples together to get
better information for planning and buying media, don't settle in
just yet. Things are about to change, just as they get started.
The Holy Grail and other cups
Let's
start at the beginning. The Holy Grail of information in media planning
and buying is single source research. This would measure people's
demography, psychographics, all of their media habits (including
an accurate picture of TV viewing) and their buying habits in just
about every product category. If we could all drink from that cup,
we would confidently select television programs to advertise on
that reach current and potential customers. Of course, we haven't
really figured out how to do that yet. Basically, television audiences
are so fragmented today that we need people meters, while measures
of all other media and buying habits are voluminously handled by
other techniques. No one has found a way to palatably stuff this
down the throats of several thousand respondents. So, we have resorted
to other methods to integrate data from different samples, in the
quest for the grail.
For
a long time we matched demos of product buyers with media audiences
and planned and bought according to profiles. We still do that,
sometimes with pretty sophisticated cross-tabs. Sometimes we ascribe
samples, which is a minor league form of fusion, whereby all respondents
are questioned in broad areas like demos and some media habits,
while only some are queried in detail on product usage and detailed
media habits. Then the demos of the some are matched with the demos
of all and their special responses are seeded into the whole sample
(replicated).
The
most advanced state of data integration today is fusion. It has
been around in Europe for a while now, where people meter data from
BARB has been fused with product data from TGI. Fusion works like
this. Several key demographic characteristics like sex, age, income,
etc are selected as the best indicators for matching people up with
others who act just like them in many other ways. So, respondents
in each of two samples are matched up by linking demos and all of
their other habits are imposed on each other. The samples are fused.
Don't abuse when you fuse
For
a short time there we thought we had almost caught up with Europe
by openly exploring fusion. Several major agencies are looking into
their own systems, industry groups are reporting their findings
and researchers who have done this work in other countries are being
imported into the U.S. All this excitement overlooks a flaw in fusion
technique, which needs to be addressed (read changed).
Current
fusion practice holds that once you have identified the key demographic
descriptors that will blend two samples, what is true of people
in one sample is true of their counterparts in the other. So, for
example, if age, sex and income are the keys, a wealthy young man
who plays golf is no more likely to watch a telecast of the Masters
Tournament than one who is not a golfer. Being a golfer is not one
of the keys to the kingdom. So if you're selling golf clubs, beyond
the obvious choice of the Master Tournament, fused data as it currently
exists has limited use. This is true of every product category,
because fusion is just a more sophisticated step in a long line
of a rich heritage of information dances called "it's the best
we can do."
MultiBasing common fusion
Remember
half-life? We have already reached the half-life of traditional
fusion, even before it has begun in the U.S. Fusion is changing
here already. There is a new technique developed by Telmar called
Fusion by the MultiBasing Technique, which has all of the elements
of current fusion and includes other key descriptors, like golfing
in the example cited above. What happens is by simply inspecting
how much more golfers view the Masters than the average person,
that factor is imposed on the respondent data from the fused samples.
In concrete terms, MRI, which does not do as accurate a job at measuring
absolute viewing levels (since it doesn't use people meters), does
give us good measures of relative viewing). So if golfers view the
Masters at a rate 50% more than the average person in MRI, that
50% increase is applied to the demographically fused rating from
the two samples and the people meter rating from Nielsen. Hyperfusion.
MultiBasing.
But
there is one more benefit to MultiBasing. The sample donating the
rating (NSI sweeps) is linked (kids would say hooked up) with a
surrogate sample (MRI) which has product data. MultiBase linking
maintains the integrity of each sample, because it does not permanently
fuse the two together. This prevents a distortion of the information
inherent in each separate sample, allowing the subscriber to dig
around for more nuggets. Basically, the samples are fused and rubbed
together,
So
everyone wins. Advertisers can directly match up their schedules
with people who have bought their products or might buy. They can
also see if In the past, people who viewed their schedules bought
more product, proving their campaigns were successful.. Agencies
can plan and buy directly against their clients' customers and they
can build a store-house of case histories that track past successes
with schedules they planned and bought, showing how viewers contributed
to sales. The media can use hyper-fused data to sell prospects on
the power of their property by demonstrating how they can directly
reach out to customers and competitors' customers. And researchers
can refine the tools of fusion, safe in the knowledge that for now
at least they have the best possible expression of what's going
on out there and can better answer the question "Is my advertising
working."
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©
Media Directors Ink : June 2002
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