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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] New post 19 Sep 2005, 01:23
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A
B
C
D
E

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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 don’t trust Jerrold Jersey, so I won’t buy this milk.
(C) Wingzz tennis balls perform best because they are far more effective than any other tennis balls.
(D) I’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.

Pls explain. Im lost here.....again! :wall
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 [#permalink] New post 19 Sep 2005, 02:36
I think B has the same reasoning as the passage.

The Journal of medical something recommends to use the vaccine, but drA doesn't think this info is relevant so he won't use it on his patients.

This is a bit tricky but I used POE and choice B because it was the only answer choice left.

.
(B) Jerrold Jersey recommends this milk, and I don’t trust Jerrold Jersey, so I won’t buy this milk.
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 [#permalink] New post 19 Sep 2005, 02:48
I chose B as well using POE Macca, but thats not the OA!
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 [#permalink] New post 19 Sep 2005, 03:04
strange....could it be C then...
but it doesn't make any sense.

yes, an explanation would be nice to have on this one.
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 [#permalink] New post 19 Sep 2005, 10:34
E.
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 [#permalink] New post 19 Sep 2005, 11:28
IMO C,

because the argument sounds circular

Last edited by automan on 19 Sep 2005, 13:07, edited 1 time in total.
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 [#permalink] New post 19 Sep 2005, 11:30
sounds like circular reasoning so I will go with C.
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 [#permalink] New post 19 Sep 2005, 13:13
I think C as well. The doctor says the vaccine is faulty and that is the cause of it's problem. Sounds like circular reasoning to me.
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 [#permalink] New post 19 Sep 2005, 15:27
(C).

Dr. presupposes sth and then tries to deduce sth based on the presupposition.
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 [#permalink] New post 19 Sep 2005, 16:18
Can anyone dissect C to show the circular reasoning please? Thanks!
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 [#permalink] New post 20 Sep 2005, 00:16
I chose "B".
Can anyone please explain what does circular reasoning mean in case of C?

What is OA?
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 [#permalink] New post 20 Sep 2005, 05:41
One more vote for (C).

Circular reasoning occurs when cause = effect.

(C) says that the Wingzz is the best because it is the best.
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Re: CR- Influenza vaccine! [#permalink] New post 20 Sep 2005, 06:13
My choice is C. The question is a "mimic the reasoning" question and the statements of Dr A are used to support one another, ie circular reasoning.

C copies this logical line of reasoning. B is not the answer because the decision is based on the trust of J jersey.

rahulraao wrote:
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 don’t trust Jerrold Jersey, so I won’t buy this milk.
(C) Wingzz tennis balls perform best because they are far more effective than any other tennis balls.
(D) I’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.

Pls explain. Im lost here.....again! :wall
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 [#permalink] New post 20 Sep 2005, 12:39
I think it is C.
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 [#permalink] New post 20 Sep 2005, 12:44
gamjatang,

Thanks for the explanation. C makes sense now.

Dr. A thinks Vaccine is useless ( effect ) since his results show that the vaccine is useless ( cause ).

What would you rate the difficulty level for this question ?
M or MH or H

I chose B :(.
  [#permalink] 20 Sep 2005, 12:44
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