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A researcher studying the habits of business school students

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A researcher studying the habits of business school students [#permalink] New post 02 May 2013, 12:39
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A researcher studying the habits of business school students found that, on average, students on academic probation due to low grade point averages tend to cheat more often than do other students. The researcher concluded that students who cheat are likely to receive poor grades, even if they are not caught cheating.

Which of the following, if true, most seriously weakens the researcher's conclusion?

A) Students who are placed on academic probation due to low grade point averages often resort to cheating as a way to improve their grades.

B) Some students with high grade point averages frequently cheat in order to obtain good grades.

C) Not all students who cheat get caught.

D) Some students on academic probation do not cheat.

E) Students who cheat in school are also likely to engage in other dishonest behavior.
[Reveal] Spoiler:
OA after discussion..
[Reveal] Spoiler: OA

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Last edited by anish123ster on 03 May 2013, 00:51, edited 1 time in total.
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Re: A researcher studying....... [#permalink] New post 03 May 2013, 02:11
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anish123ster wrote:
A researcher studying the habits of business school students found that, on average, students on academic probation due to low grade point averages tend to cheat more often than do other students. The researcher concluded that students who cheat are likely to receive poor grades, even if they are not caught cheating.

A researcher has studied habits of business students. These students were on academic probation because their grade averages were low. The researcher found that these students cheat more often than other students.
Conclusion: "students who cheat are likely to receive poor grades, even if they are not caught cheating"
Student got on academic probation because of low grades. They got low grades (X) because they cheat (Y).

Quote:
Which of the following, if true, most seriously weakens the researcher's conclusion?


This argument is based on the reason X leading to the effect Y. The opposite way from Y to X would weaken the conclusion.

Quote:
A) Students who are placed on academic probation due to low grade point averages often resort to cheating as a way to improve their grades.


This is from Y to X, correct. The students did not cheat before they got on probation. They cheat on probation in order to help themselves to get past it. Key: "Students on probation resort to cheating"

Quote:
B) Some students with high grade point averages frequently cheat in order to obtain good grades.


Students with high grade point are irrelevant.

Quote:
C) Not all students who cheat get caught.


Getting caught or not is breaking up the category.

Quote:
D) Some students on academic probation do not cheat.


Very nice, is their number big enough to matter?

Quote:
E) Students who cheat in school are also likely to engage in other dishonest behavior.


Out of scope.
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Re: A researcher studying....... [#permalink] New post 02 May 2013, 20:47
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Premise: students on academic probation due to low grade point averages tend to cheat more often than do other students.
Conclusion: students who cheat are likely to receive poor grades, even if they are not caught cheating.
A choice which will prove that students who cheat can receive good grade will weaken the researcher's conclusion.


Now look at the choices:

A) Students who are placed on academic probation due to low grade point averages often resort to cheating as a way to improve their grades.
This shows that cheating is a way to improve the grades for some students and hence is the correct answer.

B) Some students with high grade point averages frequently cheat in order to obtain good grades.
Irrelevant .The author is focusing on students on academic probation with poor grade points and not on students with high grade points.

C) Not all students who cheat get caught.
Irrelevant as doesn’t say anything about receiving good grades by cheating.

D) Some students on academic probation do not cheat.
Irrelevant as doesn’t say anything about receiving good grades by cheating.

E) Students who cheat in school are also likely to engage in other dishonest behavior.
Irrelevant as doesn’t say anything about receiving good grades by cheating.
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Re: A researcher studying....... [#permalink] New post 02 May 2013, 21:29
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anish123ster wrote:
A researcher studying the habits of business school students found that, on average, students on academic probation due to low grade point averages tend to cheat more often than do other students. The researcher concluded that students who cheat are likely to receive poor grades, even if they are not caught cheating.

Which of the following, if true, most seriously weakens the researcher's conclusion?

A) Students who are placed on academic probation due to low grade point averages often resort to cheating as a way to improve their grades.

B) Some students with high grade point averages frequently cheat in order to obtain good grades.

C) Not all students who cheat get caught.

D) Some students on academic probation do not cheat.

E) Students who cheat in school are also likely to engage in other dishonest behavior.

OA after discussion..


IMO, B is correct.
Premise: students on academic probation due to low grade point averages tend to cheat more often than do other students
Conclusion: students who cheat are likely to receive poor grades, even if they are not caught cheating.
Assumption: students who cheat are NOT likely to receive high grade.
If they cheat, but receive high grade ==> we cannot conclude people who cheat will receive poor grade.

A) Students who are placed on academic probation due to low grade point averages often resort to cheating as a way to improve their grades.
Wrong. This is just the premise, it doesn't help.

B) Some students with high grade point averages frequently cheat in order to obtain good grades.
Correct.

C) Not all students who cheat get caught.
Wrong. Out of scope.

D) Some students on academic probation do not cheat.
Wrong. It doesn't weaken.

E) Students who cheat in school are also likely to engage in other dishonest behavior.
Wrong. Out of scope.
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Re: A researcher studying....... [#permalink] New post 02 May 2013, 20:27
A researcher studying the habits of business school students found that, on average, students on academic probation due to low grade point averages tend to cheat more often than do other students. The researcher concluded that students who cheat are likely to receive poor grades, even if they are not caught cheating.

Which of the following, if true, most seriously weakens the researcher's conclusion?

A) Students who are placed on academic probation due to low grade point averages often resort to cheating as a way to improve their grades.

B) Some students with high grade point averages frequently cheat in order to obtain good grades.

C) Not all students who cheat get caught.

D) Some students on academic probation do not cheat.

E) Students who cheat in school are also likely to engage in other dishonest behavior.

OA after discussion..


A is the correct answer
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Re: A researcher studying....... [#permalink] New post 03 May 2013, 00:53
Correct Answer: A

The researcher assumes that cheating caused the poor grades; it is possible that the situation is actually the reverse, where students with low grades are tempted to cheat in order to improve their grade point averages.
Thus, Answer (A) is correct, since it shows that the low grades caused the cheating, not the other way around.

Answers (C), (D), and (E) are all out of scope; we do not care about students with high grades, the number of students who get caught cheating, students on probation who do not cheat, or other types of dishonest behavior.

Answer choice (B) is similarly out of scope, but perhaps trickier. While (B) suggests that some students with high grade point averages cheat, the conclusion only states that cheaters are more likely to receive lower grades, not that they will always receive lower. The study cited in the premises is clear that low GPA students cheat more often than do high GPA students, so the fact that 'some' high GPA students frequently cheat is not damaging to the conclusion.
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Re: A researcher studying....... [#permalink] New post 03 May 2013, 03:59
great work HumptyDumpty...+1 for you...:)
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Re: A researcher studying the habits of business school students [#permalink] New post 22 Oct 2014, 05:29
in And choice a It states they resort to cheating because of a way to improve grades … it is not the outcome but it is a outcome which is expected by the students

but the argument states that post cheating they get poor grades … Isn't A irrelevant coz it is talking prior to the grades are given
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Re: A researcher studying the habits of business school students [#permalink] New post 22 Oct 2014, 05:33
also in the conclusion it is given students who cheat not the students who are on probation that cheat … so the author is talking about the students who are cheaters … in B it says some students cheat to get good grades thus weakened ??
Re: A researcher studying the habits of business school students   [#permalink] 22 Oct 2014, 05:33
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