A researcher studying the habits of business school students : GMAT Critical Reasoning (CR)
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# A researcher studying the habits of business school students

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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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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..

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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.

D) Some students on academic probation do not cheat.

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

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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03 May 2013, 00:53
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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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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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03 May 2013, 03:59
great work HumptyDumpty...+1 for you...
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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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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 ??
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09 Dec 2015, 23:08
Hello from the GMAT Club VerbalBot!

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06 Jan 2016, 03:30
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Premise: on avg. low GPA = cheat more often this also permits that high GPA can cheat or some low GPA do not cheat

Conclusion: cheat ---> likely low GPA this permits also that cheat can get high GPA

Task: We need to destroy the Cause and Effect link employed by the conclusion and provide examples where the relationship is reverse or there is a different cause for low GPA and cheat has nothing to do with low GPA or cheat and low GPA are just a coincidence.

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 translates into low GPA ---> cheat and reverses the cause and effect relationship thus destroying the arguement

B. Some students with high grade point averages frequently cheat in order to obtain good grades. the arguement permits this=see above high GPA = cheat

C. Not all students who cheat get caught. being caught or not this is not required for the conclusion to remain valid

D. Some students on academic probation do not cheat. again in line with the arguement low GPA=no cheat or high GPA=no cheat

E. Students who cheat in school are also likely to engage in other dishonest behavior. not good for them but this answer is out of scope.
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01 Nov 2016, 10:57
conclusion x (cheating) caused the Y( poor grades))

weakening would be Y caused the X,

poor grades ( y) prompts students to do cheating(x)
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15 Jan 2017, 23:04
HumptyDumpty got this right on.

This problem uses one of the common causation =/= correlation arguments.

* Does this need to be true? Of course not.

- This is essentially flipping the order: instead of X --> Y, it says Y --> X
Re: A researcher studying the habits of business school students   [#permalink] 15 Jan 2017, 23:04
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