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Many high schools send students to special courses to

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Many high schools send students to special courses to [#permalink]

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14 Nov 2012, 06:12
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Many high schools send students to special courses to prepare them for language exams. Some language teachers criticize these courses and point out that high schools which do not send their students to special courses have reported a higher average score than those which do since 1995. The language teachers say that the courses are a waste of time and money.

Which of the following, if true, is the most effective challenge to this argument?

A. Those schools which do not send students to the courses have better knowledge of the exams since they are the only schools which participated in the exams prior to 1995.
B. Schools that have sent students to courses since 1995 have experienced a greater drop in their scores than they had prior to 1995.
C. The cost of these courses run by outside teachers has risen dramatically since 1995.
D. The poor design of courses to prepare students for the language exams is not the only reason for their ineffectiveness.
E. Since 1995, the number of students who passed the language exams has risen by 20%.

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15 Nov 2012, 19:54
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Vineetk wrote:
Many high schools send students to special courses to prepare them for language exams. Some language teachers criticize these courses and point out that high schools which do not send their students to special courses have reported a higher average score than those which do since 1995. The language teachers say that the courses are a waste of time and money.

Which of the following, if true, is the most effective challenge to this argument?

A. Those schools which do not send students to the courses have better knowledge of the exams since they are the only schools which participated in the exams prior to 1995.
B. Schools that have sent students to courses since 1995 have experienced a greater drop in their scores than they had prior to 1995.
C. The cost of these courses run by outside teachers has risen dramatically since 1995.
D. The poor design of courses to prepare students for the language exams is not the only reason for their ineffectiveness.
E. Since 1995, the number of students who passed the language exams has risen by 20%.

Conclusion: Language courses are a waste of time and money.

Weaken the conclusion.

A - Some schools do not send students to language courses. They have better knowledge of the exam since they have been participating for a long time. Some schools send students to language courses. They do not have as much knowledge since they have not been participating for long. Hence language courses for these schools may not be a waste of time and money.

The only confusion could be with E. Notice that E talks about the 'number of students' who passed. The total number of students appearing for the test could have increased which would have increased the number of students who passed even if the passing rates remained the same. Until and unless we have some more numbers, we cannot say that E weakens the conclusion.

For more, check out this strengthen/weaken video: an-architect-s-look-at-critical-reasoning-by-veritas-prep-142434.html#p1143539
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Get started with Veritas Prep GMAT On Demand for $199 Veritas Prep Reviews Veritas Prep GMAT Instructor Joined: 16 Oct 2010 Posts: 7380 Location: Pune, India Followers: 2291 Kudos [?]: 15146 [1] , given: 224 Re: Many high schools.. [#permalink] Show Tags 06 Nov 2013, 07:10 1 This post received KUDOS Expert's post ankur1901 wrote: VeritasPrepKarishma wrote: Vineetk wrote: Many high schools send students to special courses to prepare them for language exams. Some language teachers criticize these courses and point out that high schools which do not send their students to special courses have reported a higher average score than those which do since 1995. The language teachers say that the courses are a waste of time and money. Which of the following, if true, is the most effective challenge to this argument? A. Those schools which do not send students to the courses have better knowledge of the exams since they are the only schools which participated in the exams prior to 1995. B. Schools that have sent students to courses since 1995 have experienced a greater drop in their scores than they had prior to 1995. C. The cost of these courses run by outside teachers has risen dramatically since 1995. D. The poor design of courses to prepare students for the language exams is not the only reason for their ineffectiveness. E. Since 1995, the number of students who passed the language exams has risen by 20%. Please explain your answer. Conclusion: Language courses are a waste of time and money. Weaken the conclusion. A - Some schools do not send students to language courses. They have better knowledge of the exam since they have been participating for a long time. Some schools send students to language courses. They do not have as much knowledge since they have not been participating for long. Hence language courses for these schools may not be a waste of time and money. The only confusion could be with E. Notice that E talks about the 'number of students' who passed. The total number of students appearing for the test could have increased which would have increased the number of students who passed even if the passing rates remained the same. Until and unless we have some more numbers, we cannot say that E weakens the conclusion. For more, check out this strengthen/weaken video: an-architect-s-look-at-critical-reasoning-by-veritas-prep-142434.html#p1143539 Sorry i am still not clear as to why is E incorrect. Why do you say that it talks about number? It says that number of students increased by 20%. so if usually there were 100 students passing the exam after 1995 after attending the language course the pass % increased to 120. Its still % and not absolute numbers. (E) says that "the number of students who passed the language exams has risen by 20%". The number of students who passed implies nothing about number of students who appeared since we don't know how the passing rates have changed. Say prior to 1995, 200 students used to appear for the exam and 50% i.e. 100 used to pass. Now say 240 appear and still 50% i.e. 120 pass. The 'number of students who passed' has increased from 100 to 120 (i.e. by 20%) but that doesn't imply that students are performing better now. They are performing the same as before since the pass percentage is the same (in very restricted terms). _________________ Karishma Veritas Prep | GMAT Instructor My Blog Get started with Veritas Prep GMAT On Demand for$199

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14 Nov 2012, 08:18
Vineetk wrote:
Many high schools send students to special courses to prepare them for language exams. Some language teachers criticize these courses and point out that high schools which do not send their students to special courses have reported a higher average score than those which do since 1995. The language teachers say that the courses are a waste of time and money.

Which of the following, if true, is the most effective challenge to this argument?

A. Those schools which do not send students to the courses have better knowledge of the exams since they are the only schools which participated in the exams prior to 1995.
B. Schools that have sent students to courses since 1995 have experienced a greater drop in their scores than they had prior to 1995.
C. The cost of these courses run by outside teachers has risen dramatically since 1995.
D. The poor design of courses to prepare students for the language exams is not the only reason for their ineffectiveness.
E. Since 1995, the number of students who passed the language exams has risen by 20%.

Basically we want an answer choice that weakens the argument. Only option A is the contender. If a school has better knowledge of exam or expertise in the particular area, it doesnt need to send its students to language school and also would be able to better provide the education. Thus the results. However, other schools still need to send students for such courses

Ans A it is.
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06 Nov 2013, 06:37
VeritasPrepKarishma wrote:
Vineetk wrote:
Many high schools send students to special courses to prepare them for language exams. Some language teachers criticize these courses and point out that high schools which do not send their students to special courses have reported a higher average score than those which do since 1995. The language teachers say that the courses are a waste of time and money.

Which of the following, if true, is the most effective challenge to this argument?

A. Those schools which do not send students to the courses have better knowledge of the exams since they are the only schools which participated in the exams prior to 1995.
B. Schools that have sent students to courses since 1995 have experienced a greater drop in their scores than they had prior to 1995.
C. The cost of these courses run by outside teachers has risen dramatically since 1995.
D. The poor design of courses to prepare students for the language exams is not the only reason for their ineffectiveness.
E. Since 1995, the number of students who passed the language exams has risen by 20%.

Conclusion: Language courses are a waste of time and money.

Weaken the conclusion.

A - Some schools do not send students to language courses. They have better knowledge of the exam since they have been participating for a long time. Some schools send students to language courses. They do not have as much knowledge since they have not been participating for long. Hence language courses for these schools may not be a waste of time and money.

The only confusion could be with E. Notice that E talks about the 'number of students' who passed. The total number of students appearing for the test could have increased which would have increased the number of students who passed even if the passing rates remained the same. Until and unless we have some more numbers, we cannot say that E weakens the conclusion.

For more, check out this strengthen/weaken video: an-architect-s-look-at-critical-reasoning-by-veritas-prep-142434.html#p1143539

Sorry i am still not clear as to why is E incorrect. Why do you say that it talks about number? It says that number of students increased by 20%. so if usually there were 100 students passing the exam after 1995 after attending the language course the pass % increased to 120. Its still % and not absolute numbers.
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Re: Many high schools send students to special courses to [#permalink]

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01 Dec 2013, 08:59
Hi Ankur1901

you right, Well the conclusion is whether the language course is waste of time and money or not.And option A only affects the premise" --that high schools which do not send their students to special courses have reported a higher average score than those which do since 1995--" without affecting the conclusion.

how people who support option B will prove that that the course is waste of time for another school ( in fact for all other schools as the tone of conclusion says). Moreover, the question is about language exam score ( which E clearly indicates) not overall score.Hence E suits better.

Even if , E says that the 20% rise is due to increase in number of students then in itself it infers that more people are joining this course.
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Re: Many high schools send students to special courses to [#permalink]

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20 Dec 2014, 20:18
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Re: Many high schools send students to special courses to [#permalink]

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29 Mar 2017, 12:36
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Many high schools send students to special courses to   [#permalink] 29 Mar 2017, 12:36
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