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变量混淆
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变量混淆
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confounding of variable
变量混淆
刺激变量以外的其他变量也同时变化,从而不能完全确认哪个变量影响反应变量的现象。这类变量称为混淆变量,又称额外变量。
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brown leaf spot of cassava
brown long-eared bat
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