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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 11 Apr 2008, 12:02
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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.

Haizzzz.... I am struggling with LSAT CR 1000, my test is 10 days left... Dont understand OA of this question. maybe I am getting mad recent days... :twisted:
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Re: CR- Dont understand the OA [#permalink] New post 11 Apr 2008, 15:39
C for me - let me know if this is the OA and then i'll explain further.
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Re: CR- Dont understand the OA [#permalink] New post 11 Apr 2008, 17:58
D, I guess.

Dr. A does not seems to give any reason for claiming the vaccine useless. The same is done in this choice.
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Re: CR- Dont understand the OA [#permalink] New post 12 Apr 2008, 04:58
OA is C
Prejudiced belief in both C and Dr A's statements.
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Re: CR- Dont understand the OA [#permalink] New post 12 Apr 2008, 09:42
Nihit wrote:
OA is C
Prejudiced belief in both C and Dr A's statements.


OA is C. Pls explain why
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Re: CR- Dont understand the OA [#permalink] New post 12 Apr 2008, 09:43
bsd_lover wrote:
C for me - let me know if this is the OA and then i'll explain further.

Bsd_lover, U always get the OA :wink: ..
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Re: CR- Dont understand the OA [#permalink] New post 12 Apr 2008, 11:59
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notahug 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.


Stem: A is bad. B said A is good so B must be wrong because A is bad.
This is circular reasoning. You assume to be true what you are supposed to be proving.

(A) Hasty generation. An argument that bases a generalization on insufficient number of instances.
(B) B said A is good but B is untrustworthy, so A is bad. Personal attack. Depute an argument based on the source of the argument.
(C) A is good because A is good. Circular reasoning.
(D) Argument by authority. Bases the judgment of an assertion on the source of the assertion.
(E) Sweeping generalization. Apply a general rule to a specific case.

These are all different types of logical fallacies. To see other types and examples, please read this thread: viewtopic.php?t=40345
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Re: CR- Dont understand the OA [#permalink] New post 12 Apr 2008, 12:16
HongHu wrote:
notahug 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.


Stem: A is bad. B said A is good so B must be wrong because A is bad.
This is circular reasoning. You assume to be true what you are supposed to be proving.

(A) Hasty generation. An argument that bases a generalization on insufficient number of instances.
(B) B said A is good but B is untrustworthy, so A is bad. Personal attack. Depute an argument based on the source of the argument.
(C) A is good because A is good. Circular reasoning.
(D) Argument by authority. Bases the judgment of an assertion on the source of the assertion.
(E) Sweeping generalization. Apply a general rule to a specific case.

These are all different types of logical fallacies. To see other types and examples, please read this thread: viewtopic.php?t=40345


Tks HongHu. Great help! Kudos for you :wink:
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Re: CR- Dont understand the OA [#permalink] New post 12 Apr 2008, 16:03
LOL ok here's my logic :
What I understood from the question was :
Dr A says "this influenza vaccine is crap" why ? "because its just crap" any to any other logic "must be wrong because this influenza vaccine is crap"

Only C has similar disregard for reason or logic.


notahug wrote:
bsd_lover wrote:
C for me - let me know if this is the OA and then i'll explain further.

Bsd_lover, U always get the OA :wink: ..
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Re: CR- Dont understand the OA [#permalink] New post 16 Apr 2008, 10:30
Guys, isn't this strictly an LSAT CR question. I don't think GMAT would test this form of reasoning or am I wrong?
Re: CR- Dont understand the OA   [#permalink] 16 Apr 2008, 10:30
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