请问 argument 50 薰衣草花香能治疗失眠，肿么分析撒？？？

yzy0704 · 发表于 2012-8-28 19:37:01

题目是介个：

An ancient, traditional remedy for insomnia—the scent of lavender
flowers—has now been proved effective. In a recent study, 30 volunteers
with chronic insomnia slept each night for three weeks on
lavender-scented pillows in a controlled room where their sleep was
monitored electronically. During the first week, volunteers continued to
take their usual sleeping medication. They slept soundly but wakened
feeling tired. At the beginning of the second week, the volunteers
discontinued their sleeping medication. During that week, they slept less
soundly than the previous week and felt even more tired. During the third
week, the volunteers slept longer and more soundly than in the previous
two weeks. Therefore, the study proves that lavender cures insomnia
within a short period of time.

竹林中人 · 发表于 2012-8-28 22:33:16

１．缺少一个对照组
２．３０人的实验，样本太小
２．他们第三周睡眠好不是因为枕头的原因，有可能是由于前两个星期没睡好（知道被人监视），实在是太疲劳了

yzy0704 · 发表于 2012-8-29 07:42:42

喔！！！

[综合讨论] 请问 argument 50 薰衣草花香能治疗失眠，肿么分析撒？？？

所属分类: GRE考试

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