Dr. A: The new influenza vaccine is useless at best and : GMAT Critical Reasoning (CR)
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# Dr. A: The new influenza vaccine is useless at best and

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Dr. A: The new influenza vaccine is useless at best and [#permalink]

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08 Sep 2006, 22:25
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Dr. A: The new influenza vaccine is useless at best and possibly dangerous. I would never use it on a patient.
Dr. B: But three studies published in the Journal of Medical Associates have rated that vaccine as unusually effective.
Dr. A: The studies must have been faulty because the vaccine is worthless.
In which of the following is the reasoning most similar to that of Dr. A?

(A) Three of my patients have been harmed by that vaccine during the past three weeks, so the vaccine is unsafe.
(B) Jerrold Jersey recommends this milk, and I donâ€™t trust Jerrold Jersey, so I wonâ€™t buy this milk.
(C) Wingzz tennis balls perform best because they are far more effective than any other tennis balls.
(D) Iâ€™m buying Vim Vitamins. Doctors recommend them more often than they recommend any other vitamins, so Vim Vitamins must be good.
(E) Since University of Muldoon graduates score about 20 percent higher than average on the GMAT, Sheila Lee, a University of Muldoon graduate, will score about 20 percent higher than average when she takes the GMAT.
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08 Sep 2006, 23:00
C - Circular argument
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09 Sep 2006, 01:54
yeah..C is my choice..another reason is lack of evidence in C and Dr A's statements
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09 Sep 2006, 04:14
C it is for circular argument.
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09 Sep 2006, 06:24
Can you guys please explain what circular reasoning is or if you can provide a link, it would be great?
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09 Sep 2006, 06:38
I think there is a B on our hands here.

I think milk is unsafe.

But Jerrald told me it is great

Jerrald must be wrong, milk is unsafe
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09 Sep 2006, 07:21
rookie06 wrote:
Can you guys please explain what circular reasoning is or if you can provide a link, it would be great?

In circular reasoning, you assume what you are supposed to prove. Am I right Dahiya?
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09 Sep 2006, 08:24
This seems like an LSAT question. is this type common in GMAT?
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09 Sep 2006, 20:18
ak_idc wrote:
rookie06 wrote:
Can you guys please explain what circular reasoning is or if you can provide a link, it would be great?

In circular reasoning, you assume what you are supposed to prove. Am I right Dahiya?

Absolutely correct.

When author try to prove something using the conclusion itself then it is called circular argument.
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10 Sep 2006, 14:41
I hate to disagree with the gurus but I think B
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10 Sep 2006, 21:23
OA is C
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12 Sep 2006, 05:03
I don't get it
"In circular reasoning, you assume what you are supposed to prove"
In this passage, what is the assumption and what is the conclusion?
Thanks
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12 Sep 2006, 05:13
I don't get it
"In circular reasoning, you assume what you are supposed to prove"
In this passage, what is the assumption and what is the conclusion?
Thanks

Dr A instead proving his claim with an evidence is directly saying that the medicine is worthless. Instead of saying how studies are faulty, he is saying they are faulty. This way he is assuming what is supposed to prove.
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13 Sep 2006, 00:00
tennis ball is correct.
13 Sep 2006, 00:00
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