lsat Sec8-22-23

ygjm

Questions 22-23

Doctors in Britain have long suspected that patients who wear tinted eyeglasses are abnormally prone to depression and hypochondria. Psychological tests given there to hospital patients admitted for physical complaints like heart pain and digestive distress confirmed such a relationship. Perhaps people whose relationship to the world is psychologically painful choose such glasses to reduce visual stimulation, which is perceived as irritating. At any rate, it can be concluded that when such glasses are worn, it is because the wearer has a tendency to be depressed or hypochondriacal

22. The argument assumes which one of the following?

(A) Depression is not caused in some cases by an organic condition of the body.

(B) Wearers do not think of the tinted glasses as a means of distancing themselves from ocher people.

(C) Depression can have many causes, including actual conditions about which it is reasonable for anyone to be depressed.

(D) For hypochondriacs wearing tinted glasses, the glasses serve as a visual signal to others that the wearer's health is delicate.

(E) The tinting does not dim light to the eye enough to depress the wearer's mood substantially.

23. Each of the following, if true, weakens the argument EXCEPT:

(A) Some people wear tinted glasses not because they choose to do so but because a medical condition of their eyes forces them to do so.

(B) Even a depressed or hypochondriacal person can have valid medical complaints, so a doctor should perform all the usual objective tests in diagnosing such persons.

(C) The confirmatory tests were not done for places such as western North America where the usual quality of light differs from that prevailing in Britain.

(D) Fashions with respect to wearing tinted glasses differ in different parts of the world.

(E) At the hospitals where the tests were given, patients who were admitted for conditions less ambiguous than heart pain or digestive distress did not show the relationship between tinted glasses and depression or hypochondria

答案分别是E和B， 我对这题题干部分的因果就没看清楚， 到底wear tinted-glasses是因， 还是depression or hypochondria？
谢谢！

snow_mountain

问题就在这里呀。文章中的现象不足以说明因果关系。22. E排除了相反的关系。

23。 其它都指明它因。

weiyu

原文推理为heart    pain    and    digestive    distress    导致depressed    or    hypochondriacal，且这些病人带tint glasses。是depressed    or    hypochondriacal导致带tint glasses, 而不是带tint glasses->depressed    or    hypochondriacal