Because there is no 定量地测量 enviroment
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送交者: HunHunSheng 于 2007-04-26, 12:56:11:
回答: Another flaw with observation study is people tend to lie on survey form 由 HunHunSheng 于 2007-04-26, 12:54:00:
people's self-rating is used. Self rating can
greatly reduce the correlation with another
factors.
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