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A recent study of college students shows that, contrary to

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Re: CR: Nutrition Study [#permalink] New post 08 Aug 2012, 19:15
gixxer1000 wrote:
I get answer E.

Which of the following, if true, is most useful in determining the accuracy of the study described above?

We are only concerned about the accuracy of the study. The study looked at 60 students. If these 60 students were not a random group then the study would not be accurate. For example half the students could be seniors who tend to get steady grades because they have made it to their senior year and the other half could be freshmen whose grades are all over the place.

v) All of the college students who volunteered for the study were either in their first or second year of college.

This is the only answer that adds to the validity of the study sample.

I agree. E is my answer as well.
Re: CR: Nutrition Study   [#permalink] 08 Aug 2012, 19:15
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