求助, control 与 control for 的用法差别

蜡蜡蜡

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~！

lsshi8947

同问啊，一直不懂！

joybb

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

粽子小姐

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？