题目内容 (请给出正确答案)
提问人:网友c********1 发布时间:2022年6月13日 19:23
[ 单项选择题]

实验中自变量与因变量之间因果关系的明确程度是指()。

A.实验的外部效度

B.实验的内部效度

C.实验的构想效度

D.实验的结构效度

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