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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 />

Copyright 2011 Cengage Learn<strong>in</strong>g. All Rights Reserved. May not be copied, scanned, or duplicated, <strong>in</strong> whole or <strong>in</strong> part. Due to electronic rights, some third party content may be suppressed from <strong>the</strong> eBook and/or eChapter(s).<br />

Editorial review has deemed that any suppressed content does not materially affect <strong>the</strong> overall learn<strong>in</strong>g experience. Cengage Learn<strong>in</strong>g reserves <strong>the</strong> right to remove additional content at any time if subsequent rights restrictions require it.

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