When two potentially effective independent variables are allowed to covary simultaneously,a __________ has occurred.
A)covariation
B)correlation
C)confounding
D)causal inference

Question

Quizplus · Accepted Answer

When two potentially effective independent variables are allowed to covary simultaneously, a confounding has occurred. Confounding occurs when the effects of two variables on an outcome variable cannot be separated from each other. This can lead to incorrect conclusions about the relationship between the independent variables and the outcome variable.

When Two Potentially Effective Independent Variables Are Allowed to Covary