Clinical checkups after the first and second trimesters of : GMAT Critical Reasoning (CR)
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# Clinical checkups after the first and second trimesters of

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Clinical checkups after the first and second trimesters of [#permalink]

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19 Jun 2011, 06:43
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41% (03:04) correct 59% (02:01) wrong based on 402 sessions

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Clinical checkups after the first and second trimesters of pregnancy were introduced to Country X four years ago. Medical experts claim that the following reduction of 35% in cases of premature labor, one of the main causes of still birth in Country X, is directly connected to the aforementioned clinical checkups.

Which of the following, if true, most seriously undermines the medical experts' claim?

(A)The clinical checkups were intended for the early identification of women who are at risk of post-natal depression, and not for premature labor prevention.

(B)Four years ago, a dozen hospitals in Country X were given new equipment to facilitate the extraction of new-born babies, thus lowering significantly the number of still births.

(C)The cessation of hostilities in Country X coincided with the introduction of clinics offering checkups to pregnant women, and women in war zones are more prone to go into early labor.

(D)Eight years ago, the UN launched a campaign in Country X promoting the use of medicine to reduce the cases of infections of the urinary tract, following which the percentage of woman going into premature labor was reduced by 30%.

(E)Women throughout the world, including those in Country X, go into premature labor, inevitably resulting in a certain percentage of still births.

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Official Explanation:
[Reveal] Spoiler:
This answer choice provides an alternate explanation for the reduction phenomenon, thereby weakening the conclusion. According to this answer choice, the reduction of cases of premature labor may be explained by the cessation of hostilities rather than the checkups offered by clinics. This answer choice therefore shows that the checkups were not entirely responsible for the reduction.
[Reveal] Spoiler: OA

Last edited by smodak on 19 Jun 2011, 16:59, edited 2 times in total.
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19 Jun 2011, 06:56
I go with B
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19 Jun 2011, 06:58
C for me.

According to the argument,

Clinical Checkups caused the 35 % reduction . (Cause-Effect reasoning). C weakens this by giving an alternate cause.

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19 Jun 2011, 13:30
tough one since A, B, C are close

IMO (A) is correct as the clinics check for post natal depression and not pre-mature birth
(B) i- equipment reduced # of still birth and not necessarily pre-mature birth, which is one of the reasons behind still birth.
(C) - Does not mention when the war ended
(D) - Happened Eight years back - irrelevant
(E)- Irrelevant
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19 Jun 2011, 17:00
OA Provided.
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20 Jun 2011, 10:40
Can anyone explain why C is correct, and others are incorrect. I thought A, C, D are all possible.
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20 Jun 2011, 11:27
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smodak wrote:
Clinical checkups after the first and second trimesters of pregnancy were introduced to Country X four years ago. Medical experts claim that the following reduction of 35% in cases of premature labor, one of the main causes of still birth in Country X, is directly connected to the aforementioned clinical checkups.

Which of the following, if true, most seriously undermines the medical experts' claim?

(A)The clinical checkups were intended for the early identification of women who are at risk of post-natal depression, and not for premature labor prevention.
Possible choice. Come back to it later.
It's true that even I was vacillating between A and C (30-70) a bit. However, it's possible for a process to achieve more than it's intended for. Moreover, maybe the very act of identifying patients who're likely to be subjected to the post-natal depression causes the reduction in preterm labor, who knows. Perhaps the women who fall in this category are the very women who are subjected to preterm labor. After identification, they could get preventive treatment and counseling, resulting in reduction of preterm labor.

(B)Four years ago, a dozen hospitals in Country X were given new equipment to facilitate the extraction of new-born babies, thus lowering significantly the number of still births.
Dozen hospitals may just be a small percentage of hospitals in country X. If country X has million hospitals, we can't gauge much on this statistics from what happened in just few dozens of those million hospitals.

(C)The cessation of hostilities in Country X coincided with the introduction of clinics offering checkups to pregnant women, and women in war zones are more prone to go into early labor.
This is reasonable. Because the reduction may have caused as a positive effect of cessation of war and hostilities.

(D)Eight years ago, the UN launched a campaign in Country X promoting the use of medicine to reduce the cases of infections of the urinary tract, following which the percentage of woman going into premature labor was reduced by 30%.
The reduction started 4 years ago, not 8.

(E)Women throughout the world, including those in Country X, go into premature labor, inevitably resulting in a certain percentage of still births.
This is an info about preterm labor that doesn't affect the argument in anyway. Out of scope.
Go back to A.
Source: Master GMAT.

Official Explanation:
[Reveal] Spoiler:
This answer choice provides an alternate explanation for the reduction phenomenon, thereby weakening the conclusion. According to this answer choice, the reduction of cases of premature labor may be explained by the cessation of hostilities rather than the checkups offered by clinics. This answer choice therefore shows that the checkups were not entirely responsible for the reduction.

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20 Jun 2011, 12:29
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Clearly C

Clinical checkups after the first and second trimesters of pregnancy were introduced to Country X four years ago. Medical experts claim that the following reduction of 35% in cases of premature labor, one of the main causes of still birth in Country X, is directly connected to the aforementioned clinical checkups.

Which of the following, if true, most seriously undermines the medical experts' claim?

(A)The clinical checkups were intended for the early identification of women who are at risk of post-natal depression, and not for premature labor prevention. ......It was intended but we do not know the definitely that the same thing has happened as intended or not...Hence wrong

(B)Four years ago, a dozen hospitals in Country X were given new equipment to facilitate the extraction of new-born babies, thus lowering significantly the number of still births......Machines lowered the number of still births but what about premature labor, how do premature labor reduced. The stimulus suggests that reduction in premature labor leads to reduction in still babies and not the vice versa....hence wrong

(C)The cessation of hostilities in Country X coincided with the introduction of clinics offering checkups to pregnant women, and women in war zones are more prone to go into early labor. .... this Option provide different cause for reduction of premature labor and thus still babies. It suggests that may be instead of medical check ups the cessation of war has caused the effect..... Thus Correct

(D)Eight years ago, the UN launched a campaign in Country X promoting the use of medicine to reduce the cases of infections of the urinary tract, following which the percentage of woman going into premature labor was reduced by 30%....... says about 8 years before ...hence irrelevant and incorrect

(E)Women throughout the world, including those in Country X, go into premature labor, inevitably resulting in a certain percentage of still births....Irrelevant and hence Incorrect.
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Re: Clinical checkups after the first and second trimesters of [#permalink]

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22 Jan 2014, 08:22
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Re: Clinical checkups after the first and second trimesters of [#permalink]

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01 Apr 2015, 02:11
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: Clinical checkups after the first and second trimesters of [#permalink]

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25 Nov 2016, 09:20
I too was between A and C.
what if during the pre-checks on identifying depression, women were tested on smth else - and consequently - got to the result that was given?

C gives a solid reason to weaken the argument...
Re: Clinical checkups after the first and second trimesters of   [#permalink] 25 Nov 2016, 09:20
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