遗传 and 环境 can be "comfounded" in the study
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送交者: HunHunSheng 于 2007-04-26, 12:48:27:
回答: 自如、noboru：有关近视与遗传的关系的研究是定量地测量、统计眼球屈光度 由 方舟子 于 2007-04-26, 10:28:46:
Need to know how they determined 遗传.
This can only be done if children, twins or not
are seperated from their biological parents and
randomized into different groups under different envriment. Otherwise you can not seprate two
factors. They may be "COMFOUNDED".
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