求NN解答逻辑大全TEST B 第5题

yorku

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？

yorku

哦，明白了，非常感谢！！

my8221808

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.