The Ergonomic Society conducted a study that indicated that : GMAT Critical Reasoning (CR)
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# The Ergonomic Society conducted a study that indicated that

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The Ergonomic Society conducted a study that indicated that [#permalink]

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08 Dec 2012, 12:45
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The Ergonomic Society conducted a study that indicated that many people develop severe back problems during adulthood, and that virtually all such people who received chiropractic treatment showed great improvement. Therefore, in order to minimize the proportion of the population that suffers from back pain, the Ergonomic Society recommended that chiropractic treatment be directed toward those adults who suffer from severe back problems.

Which of the following is an assumption on which the argument depends?
Any person who receives chiropractic treatment for back pain may also benefit from other forms of treatment.
Large insurance carriers cover chiropractic care for back problems to a lesser degree than they do other medical treatments.
Individuals who receive chiropractic or other treatment prior to developing severe back problems are not less likely to develop back pain than those who do not.
Chiropractic treatment is more effective in treating severe back problems when utilized over a long period of time, as opposed to sporadically.
Severe back pain and other problems often cause individuals to miss workdays.

In the above answer choices, can someone apply Logical Negation to choice (C), which is the answer to the question.
My question is to know in which part of the sentence we need to apply the logical negation. In answer choice (C), we can apply logical negation at 3 places. So can someone explain where to apply.

Individuals who DO/DON'T receive chiropractic or other treatment prior to developing severe back problems are LESS LIKELY not less likely to develop back pain than those who do DOES not.

Thanks
[Reveal] Spoiler: OA
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Re: Logical Negation Technique - Assumption Question [#permalink]

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08 Dec 2012, 13:05
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Hi Krackgmat,

Let me see if I can help..

Individuals who receive chiropractic or other treatment prior to developing severe back problems are not less likely to develop back pain than those who do not.

Is answer C. It's tricky, because as you say there are lots of negatives to work out. So, before we go any further, we need to work out what it actually saying.

It is saying that people who get preventative chiropractic treatment will not fare better than people who do not receive preventative treatment.

Re phrased like that the key 'negation' is clearer (highlighted above).

And it also makes it clear that this is an assumption. Because if we put all our  into treating people with back problems we need to know that we could not have spent the money better by treating all people before they get pain (preventative treatment).

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Re: The Ergonomic Society conducted a study that indicated that [#permalink]

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18 Sep 2014, 10:21
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Re: The Ergonomic Society conducted a study that indicated that [#permalink]

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24 Aug 2015, 10:14
OA:

The argument proposes that directing chiropractic treatment toward adults with severe back problems is the best way to minimize the proportion of the population that suffers from back pain. The argument assumes a high degree of overlap between those adults who suffer from severe back problems and all people who suffer from back pain, where the former group may comprise only a subset of the latter group. It also assumes that there is not another recommendation that could better accomplish the goal of minimizing back pain for a larger segment of the population than treating just those adults with severe back problems.

(A) The argument does not depend upon whether or not chiropractic treatment can or cannot be used in conjunction with other medical treatments. The fact that people could benefit from other forms of treatment aside from chiropractic care weakens the argument to a slight degree, and does not act as a supportive assumption.

(B) The relative degree of insurance coverage of chiropractic care compared with other medical treatments is not vital to the argument. Also, that insurance carriers cover chiropractic care to a lesser degree weakens the argument marginally, and does not act as a supportive assumption.

(C) CORRECT. This statement rules out the possibility that chiropractic care or other medical treatments could effectively prevent or lessen back pain among those people who have not yet developed severe back problems.

(D) That chiropractic treatment is more effective over time is irrelevant to the argument.

(E) The economic impact of severe back pain and other problems is not addressed in the argument. Instead, addressing back pain is treated as an intrinsic goal, with no mention of economic externalities.
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Re: The Ergonomic Society conducted a study that indicated that   [#permalink] 24 Aug 2015, 10:14
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