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# A recent study of college students shows that, contrary to

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Director
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A recent study of college students shows that, contrary to [#permalink]

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17 May 2007, 20:20
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A recent study of college students shows that, contrary to predicted results, special nutritional planning does not positively affect students’ grades. Sixty students, half of whom were given a nutritionally balanced diet, had grades no higher than did those students who were not placed on the diet plan.

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

A. Performance of business executives was shown to improve drastically after major alterations were made in their diets.

B. Honors students, after altering their diets, maintained that they did not change their study habits.

C. Students who participated in various fitness regimens found that their grades improved appreciably after they altered their exercise habits.

D. High school students who previously had low grades found that after they altered their diets, their grades improved dramatically.

E. All of the college students who volunteered for the study were either in their first or second year of college.
Director
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Re: CR - Study [#permalink]

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17 May 2007, 20:53
Juaz wrote:
A recent study of college students shows that, contrary to predicted results, special nutritional planning does not positively affect students’ grades. Sixty students, half of whom were given a nutritionally balanced diet, had grades no higher than did those students who were not placed on the diet plan.

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

A. Performance of business executives was shown to improve drastically after major alterations were made in their diets.

B. Honors students, after altering their diets, maintained that they did not change their study habits.

C. Students who participated in various fitness regimens found that their grades improved appreciably after they altered their exercise habits.

D. High school students who previously had low grades found that after they altered their diets, their grades improved dramatically.

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

Choose B.
Director
Joined: 26 Feb 2006
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Re: CR - Study [#permalink]

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17 May 2007, 21:01
Juaz wrote:
A recent study of college students shows that, contrary to predicted results, special nutritional planning does not positively affect students’ grades. Sixty students, half of whom were given a nutritionally balanced diet, had grades no higher than did those students who were not placed on the diet plan.

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

A. Performance of business executives was shown to improve drastically after major alterations were made in their diets.

B. Honors students, after altering their diets, maintained that they did not change their study habits.

C. Students who participated in various fitness regimens found that their grades improved appreciably after they altered their exercise habits.

D. High school students who previously had low grades found that after they altered their diets, their grades improved dramatically.

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

Choose B.
Manager
Joined: 02 May 2007
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Re: CR - Study [#permalink]

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17 May 2007, 21:12
Juaz wrote:
A recent study of college students shows that, contrary to predicted results, special nutritional planning does not positively affect students’ grades. Sixty students, half of whom were given a nutritionally balanced diet, had grades no higher than did those students who were not placed on the diet plan.

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

A. Performance of business executives was shown to improve drastically after major alterations were made in their diets.

B. Honors students, after altering their diets, maintained that they did not change their study habits.

C. Students who participated in various fitness regimens found that their grades improved appreciably after they altered their exercise habits.

D. High school students who previously had low grades found that after they altered their diets, their grades improved dramatically.

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

For (D)
Director
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Re: CR - Study [#permalink]

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17 May 2007, 21:16
kirakira wrote:
For (D)

agree with D.
I do not know why i choose B.
Director
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Re: CR - Study [#permalink]

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17 May 2007, 21:45
Himalayan wrote:
kirakira wrote:
For (D)

agree with D.
I do not know why i choose B.

OA is D.
You prolly missed the "contrary" as I did.
Manager
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17 May 2007, 21:52
My Choice is D.
It says - High school students who previously had low grades found that after they altered their diets, their grades improved dramatically

Previously the students had low grades. A change in their dit has improved their graded.
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18 May 2007, 00:28
I was wrestling between B and D. B sucks and is kinda out of context. But D doesnt make sense to me either even though it is the OA.

Your asked to find "if true" would prove most useful in determining the accuracy.

Totally Agree with ur translation here:

It says - High school students who previously had low grades found that after they altered their diets, their grades improved dramatically

Previously the students had low grades. A change in their dit has improved their graded.

But doesn't that weaken the original statement that diet DOESNT do anything?????????????????????????????????
18 May 2007, 00:28
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# A recent study of college students shows that, contrary to

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