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A recent study that compared most physiological processes

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A recent study that compared most physiological processes  [#permalink]

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New post 27 Feb 2016, 23:33
3
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A
B
C
D
E

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  25% (medium)

Question Stats:

71% (01:33) correct 29% (01:44) wrong based on 566 sessions

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A recent study that compared most physiological processes of the mentally ill to those of the mentally healthy discovered that persons with minor mental illness are more likely to have sleep disorders than those who are mentally healthy. Such research provided grounds for some scientists to speculate that minor mental illness often causes sleep disorders. Which of the following, if true, most weakens the speculation above?
(A) Some persons with minor mental illness do not have sleep disorders.
(B) Those with minor mental illness are more subject to infectious diseases than mentally healthy persons are.
(C) Sleep disorder is often caused by certain nerve-stimulating drugs or by extreme stress.
(D) Persons with sleep disorders often develop minor mental illness.
(E) Persons without mental illness sometimes have sleep disorders.

In absence of (D), can (C) be a possible answer since it is another possible cause for an effect?


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Re: A recent study that compared most physiological processes  [#permalink]

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New post 28 Feb 2016, 01:01
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D is the answer ... reversal of causality ... ?
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Re: A recent study that compared most physiological processes  [#permalink]

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New post 28 Feb 2016, 02:25
nikhiljd wrote:
D is the answer ... reversal of causality ... ?

Yes, D it is. In absence of (D), can (C) be a possible answer since it is another possible cause for an effect?
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Re: A recent study that compared most physiological processes  [#permalink]

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New post 28 Feb 2016, 06:53
nishith17 wrote:
nikhiljd wrote:
D is the answer ... reversal of causality ... ?

Yes, D it is. In absence of (D), can (C) be a possible answer since it is another possible cause for an effect?



Hello C, cannot be answer because it has word "often". Moreover it says sleep disorder is caused by some other reason but does not hints or relates to mental health. In absence of D it can be answer but please avoid such kind haggling because this is not correct way to approach. What you must be knowing is why is D not a correct answer?

Hit Kudos if you like my explanation! Hope it helps!

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Re: A recent study that compared most physiological processes  [#permalink]

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New post 28 Feb 2016, 07:52
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nishith17 wrote:
A recent study that compared most physiological processes of the mentally ill to those of the mentally healthy discovered that persons with minor mental illness are more likely to have sleep disorders than those who are mentally healthy. Such research provided grounds for some scientists to speculate that minor mental illness often causes sleep disorders. Which of the following, if true, most weakens the speculation above?
(A) Some persons with minor mental illness do not have sleep disorders.
(B) Those with minor mental illness are more subject to infectious diseases than mentally healthy persons are.
(C) Sleep disorder is often caused by certain nerve-stimulating drugs or by extreme stress.
(D) Persons with sleep disorders often develop minor mental illness.
(E) Persons without mental illness sometimes have sleep disorders.

In absence of (D), can (C) be a possible answer since it is another possible cause for an effect?


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In a weaken question like this,

A Causes B -- Weaken the statement --> B is the cause of A. [i.e B exists before A]

Mental illness cause sleep disorder --> Weaken --> Sleep disorder cause mental illness.
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Re: A recent study that compared most physiological processes  [#permalink]

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New post 06 Sep 2017, 15:47
this is a common pattern about causal relation and the correlation.
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Re: A recent study that compared most physiological processes  [#permalink]

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New post 12 May 2019, 20:53
Hi guys,
I am not able to grasp why options E & A are not the correct answers.
Can someone help? Expert's take would be welcome.
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Re: A recent study that compared most physiological processes  [#permalink]

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New post 14 May 2019, 10:59
Why C is not considered as the correct answer ?
As to weaken a Causal Argument, we can definitely show that some other reason which is causing the effect to happen ... Please explain someone ... This facts are disturbing
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Re: A recent study that compared most physiological processes  [#permalink]

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New post 17 Aug 2019, 02:51
Can someone please explain this question more accurately.
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Re: A recent study that compared most physiological processes   [#permalink] 17 Aug 2019, 02:51
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