Zelda: Dr. Ladlow, a research psychologist, has convincingly : GMAT Critical Reasoning (CR)
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# Zelda: Dr. Ladlow, a research psychologist, has convincingly

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Zelda: Dr. Ladlow, a research psychologist, has convincingly [#permalink]

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12 Apr 2004, 12:27
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Zelda: Dr. Ladlow, a research psychologist, has convincingly demonstrated that his theory about the determinants of rat behavior generates consistently accurate predictions about how rats will perform in a maze On the basis of this evidence; Dr. Ladlow has claimed that his theory is irrefutably correct.

Anson: Then Dr. ladlow is not responsible psychologist. Dr. ladlow's evidence does not conclusively prove that his theory is correct. Responsible psychologists always accept the possibility that new evidence will show that their theories are incorrect.

6) Which one of the following can be properly inferred from Anson's argument?

(A) Dr. Ladlow's evidence that his theory generates consistently accurate predictions about how rates will perform in a maze is inaccurate

(B) Psychologists who can derive consistently accurate predictions about how rats will perform in a maze from their theories cannot responsibly conclude that those theories cannot be disproved

(C) No matter how responsible psychologists are, they can never develop correct theoretical explanations.

(D) Responsible psychologists do not make predictions about how rats will perform in a maze

(E) Psychologists who accept the possibility that new evidence will show that their theories are incorrect are responsible psychologists.

7) Anson bases his conclusion about Dr. Ladlow on which one of the following?

(A) An attack on Dr. Ladlow's character

(B) The application of a general principle

(C) The use of an ambiguous term

(D) The discrediting of facts

(E) The rejection of a theoretical explanation
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12 Apr 2004, 13:43
E and B
what's the official answer?
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12 Apr 2004, 13:48
2nd question, I don't believe A can be the answer because it is not a personal attack. The first sentence: "Then Dr. ladlow is not responsible psychologist" is a conclusion drawn from a general principle given in the second half of Anson's argument
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12 Apr 2004, 19:19
hallelujah1234 wrote:
B, B

Seems only hallelujah got this one right. The OAs are B & B.
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12 Apr 2004, 19:46
B was also a contender to me for question 1. I see how E can be negated now. Let:
A= Responsible psychologist
B= Accept the possibility that new evidence will show that their theories are incorrect
The stem says If A then B
E says if B then A. This is not necessarily true for B can be for other reasons than A
Nice question Aspire!
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12 Apr 2004, 20:35
Paul wrote:
B was also a contender to me for question 1. I see how E can be negated now. Let:
A= Responsible psychologist
B= Accept the possibility that new evidence will show that their theories are incorrect
The stem says If A then B
E says if B then A. This is not necessarily true for B can be for other reasons than A
Nice question Aspire!

Thanks.. I like it when my questions are discussed extensively since these are the questions I usually get wrong.. all of your input helps me a lot.. keep it up guys
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12 Apr 2004, 20:35
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# Zelda: Dr. Ladlow, a research psychologist, has convincingly

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