Understanding Statistics in the Behavioral Sciences ... - NelsonBrain
Understanding Statistics in the Behavioral Sciences ... - NelsonBrain
Understanding Statistics in the Behavioral Sciences ... - NelsonBrain
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WHAT IS THE TRUTH? Data, Data, What Are <strong>the</strong> Data?—2<br />
As discussed <strong>in</strong><br />
this chapter, us<strong>in</strong>g<br />
data as <strong>the</strong> basis for<br />
truth assertions is<br />
an important part of<br />
<strong>the</strong> scientifi c process. Sometimes,<br />
however, data are reported <strong>in</strong> a manner<br />
that is distorted, lead<strong>in</strong>g to false<br />
conclusions ra<strong>the</strong>r than truth. This<br />
po<strong>in</strong>t is illustrated <strong>in</strong> <strong>the</strong> follow<strong>in</strong>g<br />
article that recently appeared <strong>in</strong> a<br />
local newspaper.<br />
PUNDITS TWIST FACTS<br />
INTO URBAN LEGEND<br />
By TIM RUTTEN<br />
Urban legends are anecdotes so engag<strong>in</strong>g,<br />
enterta<strong>in</strong><strong>in</strong>g, anxiety-affi rm<strong>in</strong>g<br />
or prejudice-confi rm<strong>in</strong>g that people<br />
repeat <strong>the</strong>m as true, even when <strong>the</strong>y<br />
are not.<br />
Their journalistic equivalent is <strong>the</strong><br />
pithy “poll result” or “study fi nd<strong>in</strong>g”<br />
that so neatly encapsulates a social ill<br />
or po<strong>in</strong>t of partisan contention that no<br />
talk-show host or stump orator can<br />
resist it.<br />
Ronald Reagan, for example,<br />
was so notoriously fond of dubious<br />
anecdotes that some of his close<br />
associates speculated that his years<br />
as an actor had rendered him utterly<br />
<strong>in</strong>capable of pass<strong>in</strong>g up a good l<strong>in</strong>e.<br />
That provenance-be-damned<br />
attitude hardly ended with <strong>the</strong> Great<br />
Communicator’s retirement.<br />
CNN political analyst William<br />
Schneider, an authority on op<strong>in</strong>ion<br />
poll<strong>in</strong>g, believes that highly charged<br />
political issues or campaigns are<br />
particularly prone to sp<strong>in</strong> off fi ctional<br />
study results, which <strong>the</strong>n take on a<br />
life of <strong>the</strong>ir own.<br />
“Social Security is a classic<br />
case,” Schneider said. “There is a<br />
political legend that a ‘recent’ poll,<br />
which is never specifi ed, showed that<br />
more young Americans believe Elvis<br />
is alive than expect to collect a Social<br />
Security check when <strong>the</strong>y retire. Over<br />
<strong>the</strong> past few years, every conservative<br />
on Earth and every Republican<br />
politician <strong>in</strong> Wash<strong>in</strong>gton, <strong>in</strong>clud<strong>in</strong>g<br />
President Bush, has referred to this<br />
fi nd<strong>in</strong>g. They all just say, ‘Polls or<br />
studies show this,’ but none ever has.<br />
Republicans go on cit<strong>in</strong>g this bogus<br />
fi nd<strong>in</strong>g because—whe<strong>the</strong>r it’s true<br />
or not—it has great value as political<br />
currency.”<br />
Recently, it was possible to<br />
watch ano<strong>the</strong>r such journalistic legend<br />
be<strong>in</strong>g born. The Wall Street Journal’s<br />
Leisure & Arts page published<br />
an article excerpted from a speech<br />
delivered a week before by Bruce<br />
<strong>Statistics</strong> and <strong>the</strong> “Real World” 15<br />
Cole, chairman of <strong>the</strong> National<br />
Endowment for <strong>the</strong> Humanities.<br />
In it, he decried <strong>the</strong> fact “that<br />
Americans do not know <strong>the</strong>ir history”<br />
and refl ected on this collective<br />
amnesia’s particular perils <strong>in</strong> <strong>the</strong><br />
wake of Sept. 11, whose memory he<br />
fears might even now be fad<strong>in</strong>g.<br />
All fair po<strong>in</strong>ts. However, <strong>in</strong> <strong>the</strong>ir<br />
support, Cole cited “a nationwide<br />
survey recently commissioned by<br />
Columbia Law School,” which, he<br />
said, “found that almost two-thirds<br />
of all Americans th<strong>in</strong>k Karl Marx’s<br />
socialist dogma, ‘From each accord<strong>in</strong>g<br />
to his ability, to each accord<strong>in</strong>g<br />
to his needs,’ was or may have been<br />
written by <strong>the</strong> Found<strong>in</strong>g Fa<strong>the</strong>rs and<br />
was <strong>in</strong>cluded <strong>in</strong> <strong>the</strong> Constitution.”<br />
Clear; helpful; alarm<strong>in</strong>g. Plausible,<br />
even, given <strong>the</strong> popular taste<br />
for altruistic banality. Everyth<strong>in</strong>g, <strong>in</strong><br />
o<strong>the</strong>r words, that a good rhetorical<br />
po<strong>in</strong>t should be. The problem is that<br />
is not what <strong>the</strong> Columbia poll found.<br />
(cont<strong>in</strong>ued)<br />
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