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A survey of a group of people between the ages of 75 and 80 [#permalink]
 04 Jan 2004, 20:32
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12. A survey of a group of people between the ages of 75 and 80 found that those who regularly played the card game bridge tended to have better short-term memory than those who did not play bridge. It was originally concluded from this that playing bridge can help older people to retain and develop their memory. However, it may well be that bridge is simply a more enjoyable game for people who already have good short-term memory and who are thus more inclined to play.
In countering the original conclusion the reasoning above uses which one of the following techniques?
(A) challenging the representativeness of the sample surveyed
(B) conceding the suggested relationship between playing bridge and short-term memory, but questioning whether any conclusion about appropriate therapy can be drawn
(C) arguing that the original conclusion relied on an inaccurate understanding of the motives that the people surveyed have for playing bridge
(D) providing an alternative hypothesis to explain the data on which the original conclusion was based
(E) describing a flaw in the reasoning on which the original conclusion was based .
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Director
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The "best answer" is that the first argument mistakes cause for effect.
D and E sound good, but B sounds best.
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GMAT Club Legend
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Is the answer E?
I think the argument inter-changes cause/consequence.
Cause: to play Bridge
Consequence: people have better short term memory
But what if people who already have good short-term memory just like to play bridge?
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Paul
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Director
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E.
Could be D also.
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The answer is D. I was struggling between D and E and endedup choosing E.
I hope this kind of question does not come on the real test.
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Re: CR - Short Term Memory [#permalink]
04 Jun 2010, 05:20
I can not understand how this can be. This is the kind of questions that are making me crazy. Both D and E are correct! Could anybody explain why D is better than E? many thanks.
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Re: CR - Short Term Memory [#permalink]
04 Jun 2010, 21:10
Very confusing. I guess we can choose "D" as the best. "D" correctly points out what the author does in the argument....the author points out an alternative hypothesis. He/she doesnt actually say there is a flaw in the reasoning of the argument.....the author just gives another possibility.
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Re: CR - Short Term Memory [#permalink]
05 Jun 2010, 08:23
Its an LSAT question OA is D
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Re: CR - Short Term Memory [#permalink]
08 Jun 2010, 11:38
I also struggled between D and E but picked (D) finally.
Because the author is suggesting an alternative possibility and not describing any flaw in the reasoning.
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Re: CR - Short Term Memory
[#permalink]
08 Jun 2010, 11:38
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