(A) The 50 workers moved to the brightly colored room performed precisely the same manufacturing task as the workers who remained in the drab workroom.
(B) The drab workroom was designed to provide adequate space for at most 65 workers.
(C) The 50 workers who moved to the brightly colored workroom were matched as closely as possible in age and level of training to the 50 workers who remained in the drab work-room.
(D) Nearly all the workers in both groups had volunteered to move to the brightly colored workroom.
(E) Many of the workers who moved to the brightly colored workroom reported that they liked the drab workroom as well as or better than they liked the brightly colored workroom.
正确答案B,我不知道C为什么不对。谢谢
我个人认为B的结果是另有他因(对生产率提高一定是有好处的),而C年龄和培训水平虽然一致性高,但是并没有说明一致性高对提高生产效率好还是不好(比较而言),而且测试普遍性的规律时相似的分在一组也很正常
我个人的理解一家之言
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