11thOG-97

97.Although parapsychology is often considered a pseudoscience, it is in fact a genuine scientific enterprise, for it uses scientific methods such as controlled experiments and statistical tests of clearly stated hypotheses to examine the questions it raises.

The conclusion above is properly drawn if which of the following is assumed?

(A)  If a field of study can conclusively answer the questions it raises, then it is a genuine science.

(B)  Since parapsychology uses scientific methods, it will produce credible results.

(C)  Any enterprise that does not use controlled experiments and statistical tests is not genuine science.

(D)  Any field of study that employs scientific methods is a genuine scientific enterprise.
        

(E)  Since parapsychology raises clearly statable questions, they can be tested in controlled experiments.

答案是（D）

我想问下（C）为什么不对呢？这不是一个逆否命题吗？

还有（A）不对在OG里的解释看的不是很理解，“can conclusively answer the questions it raises”哪里反映了“how well they are answered ”

谢谢各位的解答了

嗯嗯，谢谢。

我想问下，这个A怎么看出是无关项呢

D.

This is a very good paradox question.

C is typically incorrect.

A can generate B, which doesn't necessarily guarantee that anti-A can generate anti-B.