IMathAS-libretexts

What is a confounding variable?

A confounding variable is a variable other than the response variable that causes a change in the explanatory variable during the study.
A confounding variable is a variable that causes both the explanatory and response variable to change during the study.
A confounding variable is a variable that does not cause either the explanatory or response variable to change during the study.
A confounding variable is a variable other than the explanatory variable that causes a change in the response variable during the study.