标题: 求NN解答逻辑大全TEST B 第5题 [打印本页] 作者: yorku 时间: 2012-3-19 07:50 标题: 求NN解答逻辑大全TEST B 第5题
In an experiment, two different types of recorded music were played for neonates in adjacent nurseries in a hospital. In nursery A, classical music was played; in nursery B, rock music was played. After two weeks, it was found that the babies in nursery A cried less, suffered fewer minor ailments, and gained more weight than did the babies in nursery B.
5.Which of the following additional experimental data would support the hypothesis that classical music is beneficial to the development of newborn?
(B) Nursery A contained 15 percent more premature babies早产儿than nursery B.
(C) The newborns in nursery A cried less, suffered fewer minor ailments, and gained more weight than did newborns in a nursery with no music.
答案是C，我的问题是为什么B不可以？如果Nursery A 有更多早产儿，然而cried less, suffered fewer minor ailments, and gained more weight than did the babies in nursery B，那么不也是强调了classical music 的作用吗？
作者: my8221808 时间: 2012-3-19 19:16
Apples vs. oranges.
Just by looking at the data, it could very well be that the rock music
causes the baby cry more, suffer more ailments, and lose weight; while
the classical music did NOTHING!
B) alone can be explained by that premature babies cry less, suffer
fewer ailment, and gain more weight; while the classical music, again,
did nothing!
C) on the other hand, compares apple with apples and support the
conclusion that it is the classica music which causes all the good
things that happened.作者: yorku 时间: 2012-3-20 06:40
哦，明白了，非常感谢！！
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