During the three months before and the three months after a : GMAT Critical Reasoning (CR)
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# During the three months before and the three months after a

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Director
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During the three months before and the three months after a [#permalink]

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22 Dec 2005, 16:36
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During the three months before and the three months after a major earthquake in California, students at a college there happened to be keeping a record of their dreams. After experiencing the earthquake, half of the students reported dreaming about earthquakes. During the same six months, a group of college students in Ontario who had never experienced an earthquake also recorded their dreams. Almost none of the students in Ontario reported dreaming about earthquakes. So it is clear that experiencing an earthquake can cause people to dream about earthquakes.

Which of the following , if true, most strengthens the argument?

A) before the california earthquake, no more of the students in California than those in Ontario recorded dreams about earthquakes

b) the students in California were members of a class studying dreams and dream recollection, but the students in Ontario were not.

c) Before they started keeping records of their dreams,, many of the students in California had experienced at least one earthquake.

D) the students in Ontario reported having more dreams overall, per student, than the students in California did.

E) the students in Ontario who reported having dreams about earthquatkes recored the dreams as having occurred after the California earthquake.
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22 Dec 2005, 17:34
little confusing between A and C.

chosed A before. but should go with C.
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22 Dec 2005, 18:33
Vote for (C)

A and E distantly support the same idea. C seems to support the conclusion better.
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22 Dec 2005, 18:44
oa is A

I also chose C at first
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22 Dec 2005, 18:48
HIMALAYA wrote:
little confusing between A and C.

chosed A before. but should go with C.

i posted A before as "many" doesnot tell anymore. ok i was correct but could not stood with it for a long..............
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22 Dec 2005, 18:51
its ok himalaya, this was a confusing one. I still dont get A. I used pOE to get to a and C
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22 Dec 2005, 18:57
It is definitely A. The argument can be strengthened only if the group of people who have started seeing these dreams did not see it before the earthquake. A birgs out this reasoning.
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22 Dec 2005, 19:03
thanks plsubbu that makes sense
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22 Dec 2005, 20:30

ETS loves to test these kind of questions where it presents ratios/numbers to present cause-effect

One way to weaken the argument is to find out the relative umber for the before event and see if the effect would still stand.
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22 Dec 2005, 23:24
HIMALAYA wrote:
HIMALAYA wrote:
little confusing between A and C.

chosed A before. but should go with C.

i posted A before as "many" doesnot tell anymore. ok i was correct but could not stood with it for a long..............

Himalaya, Always trust your first instinct. I was in the same situtation but got A due to first instinct.
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SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008

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23 Dec 2005, 07:34
ps_dahiya wrote:
HIMALAYA wrote:
HIMALAYA wrote:
little confusing between A and C.

chosed A before. but should go with C.

i posted A before as "many" doesnot tell anymore. ok i was correct but could not stood with it for a long..............

Himalaya, Always trust your first instinct. I was in the same situtation but got A due to first instinct.

i will. thankx....................................
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23 Dec 2005, 08:23
I got A. Here is my reasoning. Both califorians and ontarians recorded and recollected dreams. But if during the pre-earthquake period the size of earthquake dreamers are not realistically compared then the experiment would not lend support. So before the earthquake both the number of dreamer should be approximatley same.
23 Dec 2005, 08:23
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