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# a researcher studying drug addicts found that,on

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13 Oct 2006, 02:24
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a researcher studying drug addicts found that,on average,they tend to manipulate other peoplea great deat more than nonaddicts do.the researcher concluded that people who frequently manipulate other people are likely to become addicts.

which of the following,if true,most seriously weakens the author's conclusions??

a. after becoming addicted to drugs,drug addict learn to manipulate other people as aa way of obtaining drugs.
b. when they are imprisoned,drug addicts often use their ability to manipiulate other people to obtain better living conditions.
d. people awho are likely to become addicts exhibit unusual behavior patterns other than frequent manipulation of other people.
e. the addicts that the researcher studied were often unsuccessful in obtaining what they wanted when they manipulated other people.
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13 Oct 2006, 02:33
Was discussed a few days back.
Ans is A. causal CR. You weaken the argument by reversing cause and effect.
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13 Oct 2006, 08:02
Yes - one more for A.
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13 Oct 2006, 09:56
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13 Oct 2006, 12:29
Why not 'C'? Can someone explain why this doesn't weaken the argument?

Thanks
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13 Oct 2006, 13:56
Clear A, would discard C on the use of some. A is definitive, C is too ambiguous.
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03 Jul 2016, 08:06
any other reason to move out C apart from some?
Re: a researcher studying drug addicts found that,on   [#permalink] 03 Jul 2016, 08:06
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