What do you call a variable, other than the independent variable, that appears to have influenced the dependent variable in a study?

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Quizplus · Accepted Answer

An extraneous variable is a variable that was not intentionally manipulated in a study, but appears to have influenced the dependent variable. It is important to control for extraneous variables to ensure that the results are valid and accurate. The independent variable is the variable that was intentionally manipulated in a study, while a covariate is a variable that is controlled for in order to more accurately measure the relationship between the independent and dependent variables. Univariate and redundant variables are not relevant to this concept.

What Do You Call a Variable, Other Than the Independent