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A broad based study of elderly people who say that they have

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A broad based study of elderly people who say that they have [#permalink]

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New post 07 Aug 2011, 13:16
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Question Stats:

58% (01:13) correct 42% (01:18) wrong based on 223 sessions

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A broad based study of elderly people who say that they have never in their lives suffered from serious insomnia reveals that they usually kept to regular sleeping schedules, going to sleep at about the same time every night and rising at about the same time each morning. Young people who wish to avoid serious insomnia into old age would therefore stand a good chance of doing so if they retire at the same hour each night and rise at the same hour each morning.

A flaw in the argument above is that it
A.fails to recognize that a pattern of behavior beneficial to elderly people may not be similarly beneficial to young people
B.bases its conclusion on contradictory evidence
C.assumes that a condition which has had a certain result in the past will not have the same result in the future
D.fails to recognize that people may differ in what they consider to be "serious" insomnia
E.concludes that one condition is the cause of another when only a correlation has been established between them
[Reveal] Spoiler: OA

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Re: CR: Weaken :A broad based study [#permalink]

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New post 07 Aug 2011, 13:27
Alright so this one can be a little tricky due to the fact that it states that "suffered from serious insomnia reveals that they usually kept to regular sleeping schedules", the keyword here is USUALLY. This demonstrates that this "broad based study" has found a similarity between the two. However this does not necessarily mean that the Insomnia is caused by sporadic sleeping patterns. So this means that the answer is "E.concludes that one condition is the cause of another when only a correlation has been established between them"

Just remember it's not stating a scientific fact that event X caused event Y, only that the two events may be related somehow.
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Re: CR: Weaken :A broad based study [#permalink]

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New post 07 Aug 2011, 14:59
When two events occur at the same time. It necessarily doesn't mean that one event caused the other.
"Not having insomnia" and "sleeping regularly" events occurring at the same time doesn't mean that sleeping regularly doesn't cause insomnia. Hence the answer is "E"

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Re: A broad based study of elderly people who say that they have [#permalink]

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New post 05 Jun 2015, 01:18
IMO D
can somebody spot whats wrong with D

Please help me on how to approach this type of questions in GMAT

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A broad based study of elderly people who say that they have [#permalink]

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New post 05 Jun 2015, 02:01
Hi Kanigmat011,

We want to find the flaw in the arguement. Usually medical conditions or for that mattter government statistics that are well defined are never brought into question.

In this case the crux of the arguement is: If people sleep on time and wake up on time they can avoid insomnia.

Conclusion says: If young people retire in the same way they stand a good chance of avoiding insomnia.

The mere "fact" found in the study is no reason to assure that insomnia can be avoided. It is actually assuming that people who dont follow that regime will develop insomnia which is clearly not true.

Hope it helps.

Regards,
Dom.

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Re: A broad based study of elderly people who say that they have [#permalink]

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New post 04 Jan 2016, 19:01
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rphardu wrote:
A broad based study of elderly people who say that they have never in their lives suffered from serious insomnia reveals that they usually kept to regular sleeping schedules, going to sleep at about the same time every night and rising at about the same time each morning. Young people who wish to avoid serious insomnia into old age would therefore stand a good chance of doing so if they retire at the same hour each night and rise at the same hour each morning.


the argument assumes that the same pattern will continue to be true in the future.

A flaw in the argument above is that it
A.fails to recognize that a pattern of behavior beneficial to elderly people may not be similarly beneficial to young people
irrelevant, the argument says that if young people want to avoid insomnia into OLD AGE.

B.bases its conclusion on contradictory evidence
no contradictory evidence here. out.

C.assumes that a condition which has had a certain result in the past will not have the same result in the future
tricky one, especially if you do not read the full answer. the NOT here makes the answer choice incorrect. the argument assumes that the same condition with a certain result, will have the same result in the future.

D.fails to recognize that people may differ in what they consider to be "serious" insomnia
the "degree" of insomnia is not discussed here.

E.concludes that one condition is the cause of another when only a correlation has been established between them
by POE, we got to this one. this one is actually true: the argument considers that the cause is going/waking ~ same time, and the result - no insomnia. nevertheless, these two might not have anything in common, if the research is conducted on a larger scale.

E for me.

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Re: A broad based study of elderly people who say that they have [#permalink]

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New post 05 Jan 2016, 15:36
rphardu wrote:
A broad based study of elderly people who say that they have never in their lives suffered from serious insomnia reveals that they usually kept to regular sleeping schedules, going to sleep at about the same time every night and rising at about the same time each morning. Young people who wish to avoid serious insomnia into old age would therefore stand a good chance of doing so if they retire at the same hour each night and rise at the same hour each morning.

A flaw in the argument above is that it
A.fails to recognize that a pattern of behavior beneficial to elderly people may not be similarly beneficial to young people
B.bases its conclusion on contradictory evidence
C.assumes that a condition which has had a certain result in the past will not have the same result in the future
D.fails to recognize that people may differ in what they consider to be "serious" insomnia
E.concludes that one condition is the cause of another when only a correlation has been established between them


This is not a 'Weaken' type but a 'Flaw' type question.

A - It is not about the age. Not a flaw.
B - No 'contradicting' evidence at all.
C - It is not about the 'time'. Not a flaw.
D - It does not say anything about people's perception, but it correlates one event to another.
E - Correct. This is a flaw since, it says if you retire, you 'Will' sleep - which is a serious flaw based on the correlation is not causation rule.

My 0.02$

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Re: A broad based study of elderly people who say that they have   [#permalink] 05 Jan 2016, 15:36
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