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In 1973, a remote town first acquired television. Shortly

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In 1973, a remote town first acquired television. Shortly [#permalink] New post 26 Dec 2003, 14:13
00:00
A
B
C
D
E

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(N/A)

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0% (00:00) correct 100% (00:00) wrong based on 1 sessions
In 1973, a remote town first acquired television. Shortly before broadcasts began there, a study was made of children's behavior. A similar study in the same community, after two years of TV, showed that the aggression rate among children of this age had increased by 160%. The conclusion drawn was that TV plays an important role in generating aggressive behavior in children. A second study, covering the same years, was made in two similar communities that had had television for decades. This study showed no change in the aggression rate from 1973 to 1975. The results of the second study:

A) suggest that the prevalence of violent themes in TV programming may be explained by the tendencies toward violence that are deeply-rooted in human nature.

B) indicate that different social groups may react quite differently to similar stimuli.

C) demonstrate that long-term exposure to TV has no more severe effects than short-term exposure.

D) support the conclusion drawn from the first study.

E) disprove the conclusion drawn from the first study.
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 [#permalink] New post 20 Jan 2004, 17:00
my bet is on C.

Hi sandeep,

dont leave us hanging
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 [#permalink] New post 20 Jan 2004, 19:59
:oops ...how did I miss this interesting one.

:no the answer is not C my friends.

Give it another shot. Then I will post the answer with the official explanation. The explanation is really interesting...wait it till you read it.
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 [#permalink] New post 20 Jan 2004, 20:05
:rocket


Ha Ha... :no

Even I could not belive the answer.....
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 [#permalink] New post 20 Jan 2004, 20:10
:bouncer2 :roll:
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 [#permalink] New post 20 Jan 2004, 20:46
D.

First town saw violence increase as TV was intro'd.

Other towns saw no increase over the same period.

Therefore, it's unlikely that children, in general, became more violent over the period. Only in the group where TV was introduced did violence increase.

It's just like having a control group in a pharma experiment.
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 [#permalink] New post 20 Jan 2004, 20:48
stoolfi, tell me frankly, did you get this question right the first time ?
Did you see this question before ?
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 [#permalink] New post 20 Jan 2004, 21:10
asandeep,

Never seen it before, got it right away.

I honestly thought that this was one of the easiest CR questions I've ever seen. I knew the answer before I read the choices.

CR is my strongest category and I rarely miss a question.

I'm not trying to be a know-it-all, and what I strength I have in CR I more than make up for in my utter failure to go more than five straight RC questions without an error. It's like being a blind guy with great hearing, I suppose.
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 [#permalink] New post 21 Jan 2004, 06:36
stoolfi, Good job! But believe me this is not among the easy ones. CR is also my strength but I found the options very close in this case.

Anyway, here is the official explanation. It's long but interesting..read it..

Official ans: D

"This is a complicated question and requires a complicated explanation. It is important to keep in mind just what the reported results are. Perhaps most importantly, nothing is said about the absolute values of the aggression rates, but only about changes in the rates. And nothing is said about how the rates in the other two communities compared with those of the first. The first study correlated two changes-the change from no TV to TV in 1973 and the change in aggression rates from 1973 to 1975. And the tentative conclusion is that the first of these changes was the cause of the second change. The second study focused on communities in which there was no change of the first sort-they were already well accustomed to TV in 1973. (Thus the second study focuses on a sort of natural 'control group.') That study found that there was no change of the second type - aggression rates in those communities remained constant from 1973 to 1975. The second study thus tends to reduce the plausibility of the suggestion that some change other than the introduction of TV caused the rise in aggressiveness in the first community (it acts as a 'control' to this experiment.) If there were some other cause, at least it doesn't seem to have been acting in the communities of the second study. And that reduces the range of possible candidates. Thus the second study tends to make more probable the conclusion drawn from the first."
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 [#permalink] New post 21 Jan 2004, 12:33
I've never seen a question which uses negative premise to support the
conclusion. But, it is interesting to read.

BTW, what is the source of the question?
  [#permalink] 21 Jan 2004, 12:33
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