In 1960's studies of rats, scientists found that crowding increases the number of attacks among the...

题目信息

In 1960's studies of rats, scientists found that crowding increases the number of attacks among the animals significantly. But in recent experiments in which rhesus monkeys were placed in crowded conditions, although there was an increase in instances of "coping" behavior-such as submissive gestures and avoidance of dominant individuals-attacks did not become any more frequent. Therefore it is not likely that, for any species of monkey, crowding increases aggression as significantly as was seen in rats.

Which of the following, if true, most strengthens the argument?

A:All the observed forms of coping behavior can be found among rhesus monkeys living in uncrowded conditions.

B:In the studies of rats, nondominant individuals were found to increasingly avoid dominant individuals when the animals were in crowded conditions.

C:Rhesus monkeys respond with aggression to a wider range of stimuli than any other monkeys do.

D:Some individual monkeys in the experiment were involved in significantly more attacks than the other monkeys were.

E:Some of the coping behavior displayed by rhesus monkeys is similar to behavior rhesus monkeys use to bring to an end an attack that has begun.

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正确答案： C:Rhesus monkeys respond with aggression to a wider range of stimuli than any other monkeys do.

But in recent experiments in which Rhesus monkeys...Therefore it is not likely that, for any species of monkey, crowding increases aggression as significantly as was seen in rats.

看完这个结论，第一感觉是样本能否推总体,实验结果只是对某一种猴子做的，就不能说所有的种类都这样。所以加强就应该说明这个样本是能够代表总体的，和总体无差异，要么原本就是总体。削弱就该说这个样本有某某特殊性，而总体是不具备的，所以不能代表总体。

这题正确答案选C，说明这种猴子相比其他猴子更容易受刺激会攻击，这就说明它已经代表了总体中最麻烦的一种，它都没问题了，任何其他也就没问题了。

笔记