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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Controlling for a variable ： ウィキペディア英語版 Controlling for a variable In statistics, controlling for a variable is the attempt to reduce the effect of confounding variables on an observational study. It means that when looking at the effect of one variable, all other variable predictors are held constant. ==Introduction== In controlled experiments, researchers randomly assign individuals to a treatment group or control group. This is done to reduce the confounding effect of irrelevant variables that are not being studied. In an observational study, however, researchers have no control over who receives the treatment. Instead, they must control for variables using statistics. Controlling for a variable holds that variable constant for calculations made about the effect of the independent variable on the dependent variable. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Controlling for a variable」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.