A few decades ago it was popular to link dramatic : GMAT Critical Reasoning (CR)
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28 Sep 2012, 01:16
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Difficulty:

75% (hard)

Question Stats:

47% (03:02) correct 53% (01:48) wrong based on 289 sessions

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A few decades ago it was popular to link dramatic increases in urban antisocial behavior with high population density, and to support this with studies of laboratory rats, which exhibit randomly violent behavior under conditions of extreme overcrowding. It has since become obvious that the analogy between rats and humans is simplistic at best, and leaves out considerations like human adaptability and cultural factors that are of key importance in determining human behavior.

Which of the following, if true, best supports the conclusion the author presents in the passage above?

A. Testing new products on laboratory rats has sometimes led to unnecessary alarm about their adverse effects on human health.
B. Rats thrive in the crowded conditions of human urban society.
C. Rats also exhibit unnatural behavior in conditions of extreme isolation.
D. Although rat behavior does change in crowded conditions, what results is not random violence but a new, radically different social order.
E. In some extremely crowded cities there is relatively little antisocial behavior, whereas some sparsely – populated rural communities have very high rates of such behavior.
[Reveal] Spoiler: OA
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28 Sep 2012, 02:30
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To strengthen the conclusion that :
Quote:
It has since become obvious that the analogy between rats and humans is simplistic at best, and leaves out considerations like human adaptability and cultural factors that are of key importance in determining human behavior.

We need to weaken the the stand that humans behave like rats. This is weakened in E, as E states that In some extremely crowded cities there is relatively little antisocial behavior, whereas some sparsely – populated rural communities have very high rates of such behavior. This is opposite to the way rats behave hence we have strengthen the conclusion.

NO other options does this, they all either give additional info or dont strengthen.

I hope i am able to explain as clearly as possible. if not please let me know
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28 Sep 2012, 03:00
I think E supports the claim.
In some extremely crowded cities there is relatively little antisocial behavior, whereas some sparsely – populated rural communities have very high rates of such behavior.
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28 Sep 2012, 03:13
the key to success on most CR questions is prethinking an assumption before going to answer choices.

what is the assumption for this question?
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29 Sep 2012, 06:03
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Q : A few decades ago it was popular to link dramatic increases in urban antisocial behavior with high population density, and to support this with studies of laboratory rats, which exhibit randomly violent behavior under conditions of extreme overcrowding. It has since become obvious that the analogy between rats and humans is simplistic at best, and leaves out considerations like human adaptability and cultural factors that are of key importance in determining human behavior.

The conclusion of this argument is - Analogy between rats and humans is simplistic but it leaves out considerations like human adaptability and cultural factors that are of key importance. So the answer choice must show that this analogy indeed has some weaknesses because it does not consider human adaptability and cultural factors that also affects human behaviour.
The argument mentions that extreme overcrowding leads to violent behaviour in rats and then make a generic conclusion by analogy of humans with rats but Answer choice 'E' explains that this analogy may not always be true because it has not considered human adaptability and cultural factors (E - Cities are crowded but little antisocial behaviour and vice versa).

Which of the following, if true, best supports the conclusion the author presents in the passage above?

A. Testing new products on laboratory rats has sometimes led to unnecessary alarm about their adverse effects on human health. - While this may be true, it does not explicitly mention about the human behaviour affected by adaptability and culture.
B. Rats thrive in the crowded conditions of human urban society. - Out of Scope
C. Rats also exhibit unnatural behavior in conditions of extreme isolation. Out of Scope
D. Although rat behavior does change in crowded conditions, what results is not random violence but a new, radically different social order. - Out of scope.
E. In some extremely crowded cities there is relatively little antisocial behavior, whereas some sparsely – populated rural communities have very high rates of such behavior. - Correct, Explained above.

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19 Feb 2016, 08:21
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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