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Does Nielsen undercount
blacks? And by how much? Debate builds as 'brownout' approaches
By Dave Lindorff
Theres a new wrinkle in the dispute over the lack of
ethnic and racial diversity in this seasons network primetime programming, with at
least one network research director claiming that Nielsen Media Research is significantly
undercounting black households.
The researcher contends that Nielsens 5,000
household national survey underrepresents black households by at least a percentage point.
A difference of 1 percent in the sample might seem small, but it represents an 8.5 percent
difference in the number of black homes counted.
According to the U.S. Census Bureaus estimates
for June 1999, 12.8 percent of Americans are black. And that's a figure many experts say
is probably really far too low because of the difficulty of getting people to cooperate
with census takers in the lower-income urban areas where many blacks live.
But a Nielsen spokesman confirms that the agencys survey has a sample
figure for black households that is 11.8 percent of the total, or a full percentage point
below the census estimate. The spokesman defends the agency's methods, however, saying,
"We dont use the census figures. We have our own figure for the universe
of households." He also points to a difference in counting methodology: "The
census counts heads. We count households."
With the NAACP and other ethnic organizations already protesting
the "whitewashing" of network programming for the fall season, the charge that
black viewers are being undercounted is certain to be controversial.
The NAACP is considering joining a
"brownout" of ABC, NBC, CBS and Fox that is set to kick in this coming Sunday
and run for nearly two weeks, till the 24th. The brownout is being organized by
Latino groups, with support from Asian and Native American groups.
Hazel Dukes, head of the NAACP's New York office, says,
"If were undercounted the networks can continue to say they dont need to
respond to our requests for TV that is diverse and that reflects the diversity of our
population. If they get the message that we arent watching, they can continue with
their all-white programming, and continue to pretend we dont exist."
A second issue that may contribute to
inaccuracy in the tracking of black family viewing patterns by Nielsen is a difference in
family size. According to the Census Bureau, the average black family has 3.42 people,
compared to 3.02 for white families.
Yet Nielsen reports that larger families statistically tend to
have more difficulty keeping their televisions "in tab," that is, properly
tabulating viewing patterns. If anything unusual happens to a television in a given survey
household--for example, if a set is left on when no one is watching, or if a set is
inadvertently unplugged, that entire household unit is not counted for that days
viewing survey. Since black families tend to be larger, critics say this means that black
families tend to be out of tab more often than white families in the Nielsen survey.
Nielsen counters that it corrects for this problem by
extrapolating the viewing patterns of the in-tab households to the whole universe for that
particular group of viewers. For example, if only 90 percent of black households are in
tab, and 10 percent of them are tuned in to a certain program, Nielsen, for ratings
purposes, will consider that 10 percent of the full 100 percent of its surveys black
households are watching that program.
But this approach doesnt satisfy Nielsen's critics. Says Sue
Nathan, research director at McCann-Erickson and current chair of the 4As research
committee:
"The trouble is that out-of-tab households tend
to have problems because they are watching more television or they have more televisions
in the house. They tend to be bigger TV viewers than the houses that are in-tab."
The out-of-tab households that get ignored by the survey, this
argument goes, actually would contribute higher ratings than simply extrapolating would
suggest.
The implications of an undercount, if there is one,
are significant, and vary depending on whether one looks at the buyer or seller of
advertising time, or whether one is talking about advertising or programming.
In the case of programming, a network executive at one of
the major nets says, "If you are undercounting one group like blacks, which you are
trying to reach, you might try too hard when you are already reaching them, and thus cause
another problem."
Conversely, a programming executive who thinks that a
certain group isnt paying much attention to a nets scheduled programming might
wrongly decide not to bother with that group in future programming.
In the case of advertising, undercounting a group could
lead a seller to underprice a program. On the other hand, McCann-Ericksons Nathan
says, "When you have undercounting it costs advertisers money. For example, if you
have an advertiser who wants 100 ratings points against blacks, they will end up buying
more time than they need to get there because of the undercount."
Says Joe Abruzzo, executive director for research at
Young & Rubicam:
"Its not much of an issue if youre
just looking within the sample to see which programs blacks are watching because the
sample itself is large enough to give valid results. But if youre trying to see what
your composition is for a program, then youre going to underestimate the size of the
black audience."
-Dave Lindorff
is a Philadelphia writer.
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