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标题: 求助, control 与 control for 的用法差别 [打印本页]

作者: 蜡蜡蜡 时间: 2012-9-19 10:17
标题: 求助, control 与 control for 的用法差别
有个小疑问来请教大家~~~

OG正确答案里的句子
.... had failed to control for variables such as social class adn family size

这里的control for 可以用control替代吗? 两者有什么差别?

先行谢过啦~！

作者: lsshi8947 时间: 2013-6-22 21:40
同问啊，一直不懂！

作者: joybb 时间: 2013-7-14 16:15
In a scientific experiment measuring the effect of one or more independent variables on a dependent variable, controlling for a variable is a method to reduce the confounding effect of variations in a third variable that may also affect the value of the dependent variable. 转自wikipedia

作者: 粽子小姐 时间: 2013-10-24 21:35

joybb 发表于 2013-7-14 16:15
In a scientific experiment measuring the effect of one or more independent variables on a dependent ...

就是说control for a variable/variables是一个固定用法表示一种科学研究方法控制变量法是吗？

还有其他情况可以用control for 吗？

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