Kelly 博士的报告刚在《流行病学和公共健康杂志》上发表,其报告显示在儿童到了7岁的时候,即便在睡前阅读,卧室电视还有父母社会经济地位等相关变量被控制的情况下,没有一个有规律的就寝时间似乎的确会影响他们的认知能力。
But that was true only if they were female. On the IQ scale, whose mean value is 100 points,girls who had had regular bedtimes scored between eight and nine points more than thosewho did not.
但是只有在女孩身上才有这个影响。在智商测量中,女孩的平均得分是100分,有定期就寝时间的女孩的分数比那些没有定期就寝时间的女孩分数要高8到9分。
Boys were not completely unaffected.
男孩并不是完全不受影响。
Irregular bedtimes left their IQs about six points below those of their contemporaries at theage of three.
在他们三岁的时候,无规律的就寝时间让他们智商分数要比他们的同龄人要低大约6分。
But the distinction vanished by the time they were seven.
但是当他们到了7岁的时候,这个差异消失了。
This difference between the sexes is baffling.
不同性别之间的不同是令人困惑的。
Dr Kelly did not expect it and has no explanation to offer for it.
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