The usefulness of lie detectors cannot be overestimated. : GMAT Critical Reasoning (CR)
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The usefulness of lie detectors cannot be overestimated.

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The usefulness of lie detectors cannot be overestimated. [#permalink]

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New post 06 May 2005, 14:47
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26. The usefulness of lie detectors cannot be overestimated. Although there is no employee screening procedure that is 100 percent accurate, the lie detector is a valuable tool for employers and employees alike. The lie detector’s usefulness is amply demonstrated in a recent survey conducted by a prestigious university. In the survey, those employees of a large company who were applying for a newly created position within the company were asked if they had ever worked on Project X. More than one-third of the applicants studied lied and said they had worked on the project—a project that never existed.

Which one of the following best identifies a flaw in the author’s argument about the usefulness of lie detectors?

(A) The argument depends on the assumption that whatever is good for the employer is good for the employee.
(B) Since lie detectors are known to be less than 100 percent accurate, the test will tend to help only those with something to hide.
(C) By referring to a prestigious university, the author is appealing to authority rather than to evidence.
(D) The study shows only that certain individual will lie, not that the lie detector can detect them.
(E) The author fails to address the issue that the use of lie detectors may fail to prevent embezzlement.
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New post 07 May 2005, 04:20
C all the way. The employees could have lied but it wasn`t caught by the detector. We don`t have the statistical evidence available for analysis.
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Re: CR: Lying [#permalink]

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New post 07 May 2005, 12:51
WinWinMBA wrote:
26. The usefulness of lie detectors cannot be overestimated. Although there is no employee screening procedure that is 100 percent accurate, the lie detector is a valuable tool for employers and employees alike. The lie detector’s usefulness is amply demonstrated in a recent survey conducted by a prestigious university. In the survey, those employees of a large company who were applying for a newly created position within the company were asked if they had ever worked on Project X. More than one-third of the applicants studied lied and said they had worked on the project—a project that never existed.

Which one of the following best identifies a flaw in the author’s argument about the usefulness of lie detectors?

(A) The argument depends on the assumption that whatever is good for the employer is good for the employee.
(B) Since lie detectors are known to be less than 100 percent accurate, the test will tend to help only those with something to hide.
(C) By referring to a prestigious university, the author is appealing to authority rather than to evidence.
(D) The study shows only that certain individual will lie, not that the lie detector can detect them.
(E) The author fails to address the issue that the use of lie detectors may fail to prevent embezzlement.


(D) for me.
The lie dectector did not proove that employment seekers lied (about involvement in project X) and so the survey was simply not relevant in determining the effect of the lie detector.
Re: CR: Lying   [#permalink] 07 May 2005, 12:51
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The usefulness of lie detectors cannot be overestimated.

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