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A new study provides more support for the hypothesis that

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A new study provides more support for the hypothesis that [#permalink] New post 14 Apr 2013, 11:09
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A new study provides more support for the hypothesis that social support may strengthen people’s immune system. This study actually found that social isolation and loneliness can impair the immune system. According to the findings of the study, lonely and socially-isolated first-year students mounted a weaker immune response to the flu shot than other students.

The argument is flawed primarily because

(A) it assumes that there can only be one cause for an effect

(B) it assumes that a necessary condition for an event is a sufficient condition for that event to occur

(C) it assumes that if a cause for an effect is removed, then the effect will in turn get reversed

(D) it mistakes a symptom for a cause

(E) it is based on unverified and subjective data
[Reveal] Spoiler: OA

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Re: A new study provides more support for the hypothesis that so [#permalink] New post 14 Apr 2013, 11:33
A new study provides more support for the hypothesis that social support may strengthen people’s immune system. This study actually found that social isolation and loneliness can impair the immune system. According to the findings of the study, lonely and socially-isolated first-year students mounted a weaker immune response to the flu shot than other students.

The argument is flawed primarily because

The problem IMO relies in the red part of the text. In the first part the conclusion of the study is presented, and then it is said that, according to the conclusion, lonely students have a weaker immune system. Before reading the answers it's clear that a weak point is the fact that other factors can contribute to this condition.

IMO B
(B) it assumes that a necessary condition for an event is a sufficient condition for that event to occur
It says that a necessary condition ( loneliness) for an event (weak system) is a sufficient condition (no other factors involved).

Waiting for OA...
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Re: A new study provides more support for the hypothesis that so [#permalink] New post 14 Apr 2013, 12:39
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Zarrolou wrote:
A new study provides more support for the hypothesis that social support may strengthen people’s immune system. This study actually found that social isolation and loneliness can impair the immune system. According to the findings of the study, lonely and socially-isolated first-year students mounted a weaker immune response to the flu shot than other students.

The argument is flawed primarily because

The problem IMO relies in the red part of the text. In the first part the conclusion of the study is presented, and then it is said that, according to the conclusion, lonely students have a weaker immune system. Before reading the answers it's clear that a weak point is the fact that other factors can contribute to this condition.

IMO B
(B) it assumes that a necessary condition for an event is a sufficient condition for that event to occur
It says that a necessary condition ( loneliness) for an event (weak system) is a sufficient condition (no other factors involved).

Waiting for OA...



Hi

here B is wrong because neither is stated explicity nor implied about sufficiency and so on.....

C instead basically says that if you are alone, this scenari leads to an unbalance immune system but if you have the latter is not true that you have the first scenario (loneliness).

OR

Just because the cause is removed does not mean the effect will get reversed. It might remain unchanged.

C is the OA indeed ;)
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Re: A new study provides more support for the hypothesis that so [#permalink] New post 14 Apr 2013, 14:49
carcass wrote:
A new study provides more support for the hypothesis that social support may strengthen people’s immune system. This study actually found that social isolation and loneliness can impair the immune system. According to the findings of the study, lonely and socially-isolated first-year students mounted a weaker immune response to the flu shot than other students.

The argument is flawed primarily because

(A) it assumes that there can only be one cause for an effect

(B) it assumes that a necessary condition for an event is a sufficient condition for that event to occur

(C) it assumes that if a cause for an effect is removed, then the effect will in turn get reversed

(D) it mistakes a symptom for a cause

(E) it is based on unverified and subjective data


Tough question!

This is weaken question.

Premise: social support may strengthen immune system. KEY
Premise: social isolation and loneliness can impair the immune system
Conclusion: lonely and socially-isolated first-year students mounted a weaker immune response to the flu shot

Assumption: X helps Y --> no X will weaken Y. It's wrong because social may support strengthen immune system, but it doesn't mean No social support will weaken immune system.

C clearly states this flaw.

Hope it helps.
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Re: A new study provides more support for the hypothesis that so [#permalink] New post 14 Apr 2013, 15:45
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pqhai wrote:
carcass wrote:
A new study provides more support for the hypothesis that social support may strengthen people’s immune system. This study actually found that social isolation and loneliness can impair the immune system. According to the findings of the study, lonely and socially-isolated first-year students mounted a weaker immune response to the flu shot than other students.

The argument is flawed primarily because

(A) it assumes that there can only be one cause for an effect

(B) it assumes that a necessary condition for an event is a sufficient condition for that event to occur

(C) it assumes that if a cause for an effect is removed, then the effect will in turn get reversed

(D) it mistakes a symptom for a cause

(E) it is based on unverified and subjective data


Tough question!

This is weaken question.

Premise: social support may strengthen immune system. KEY
Premise: social isolation and loneliness can impair the immune system
Conclusion: lonely and socially-isolated first-year students mounted a weaker immune response to the flu shot

Assumption: X helps Y --> no X will weaken Y. It's wrong because social may support strengthen immune system, but it doesn't mean No social support will weaken immune system.

C clearly states this flaw.


Hope it helps.



be careful when you say a weaken question and the stem talks about flaw in the reasoning.

Because weaken ----> you weaken the conclusion RELATED to the overll structure of the stimulus. And in weaken category question be careful to weaken only and exclusively the conclusion

In flaw question -----> you weaken directly the assumption. Basically is the contrary of the assumption.

They seem the same thing but need different strategy, though slightly.
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Re: A new study provides more support for the hypothesis that so [#permalink] New post 14 Apr 2013, 21:49
A new study provides more support for the hypothesis that social support may strengthen people’s immune system. This study actually found that social isolation and loneliness can impair the immune system. According to the findings of the study, lonely and socially-isolated first-year students mounted a weaker immune response to the flu shot than other students.

The argument is flawed primarily because

(A) it assumes that there can only be one cause for an effect
Nowhere is this stated or implied so this cant be the answer

(B) it assumes that a necessary condition for an event is a sufficient condition for that event to occur
The argument is not saying that loneliness is the necessary condition for a weaker immune system so this choice us also eliminated.

(C) it assumes that if a cause for an effect is removed, then the effect will in turn get reversed
This is closest to the argument in the passage as students who are not isolated (other students) don’t have a weaker response to flu shots.
But this should not mean that if loneliness is removed than the immune system will get ok and hence this is the flaw in the reasoning

(D) it mistakes a symptom for a cause
Cause is isolation and loneliness so this option is not possible.
(E) it is based on unverified and subjective data
Nowhere is it said that the data is unverified.
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Re: A new study provides more support for the hypothesis that so [#permalink] New post 15 Apr 2013, 05:45
carcass wrote:
A new study provides more support for the hypothesis that social support may strengthen people’s immune system. This study actually found that social isolation and loneliness can impair the immune system. According to the findings of the study, lonely and socially-isolated first-year students mounted a weaker immune response to the flu shot than other students.

The argument is flawed primarily because

(A) it assumes that there can only be one cause for an effect

(B) it assumes that a necessary condition for an event is a sufficient condition for that event to occur

(C) it assumes that if a cause for an effect is removed, then the effect will in turn get reversed

(D) it mistakes a symptom for a cause

(E) it is based on unverified and subjective data



+1 C
Rephrasing the argument -
A study - 'lonely and socially-isolated students -- > a weaker immune response' provides support for the hypothesis - 'Social support may strengthen people’s immune system' -- clearly indicates the flaw because it assumes that if a cause (social isolation) for an effect (Weak immune system) is removed, then the effect will in turn get reversed

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Re: A new study provides more support for the hypothesis that [#permalink] New post 19 Jan 2014, 06:33
carcass wrote:
A new study provides more support for the hypothesis that social support may strengthen people’s immune system. This study actually found that social isolation and loneliness can impair the immune system. According to the findings of the study, lonely and socially-isolated first-year students mounted a weaker immune response to the flu shot than other students.

The argument is flawed primarily because

(A) it assumes that there can only be one cause for an effect

(B) it assumes that a necessary condition for an event is a sufficient condition for that event to occur

(C) it assumes that if a cause for an effect is removed, then the effect will in turn get reversed

(D) it mistakes a symptom for a cause

(E) it is based on unverified and subjective data


The argument is flawed because it assumes there cannot be other reasons which can cause the same effect.

Both A and C says the same. How can C) be OA?
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Re: A new study provides more support for the hypothesis that   [#permalink] 19 Jan 2014, 06:33
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