When we say that two independent variables, such as gender and age, are confounded, we mean that
A) one variable blocks the influence of the other.
B) we cannot completely tell the effect of gender apart from the effect of age.
C) we cannot do anything with the study.
D) the data were collected carelessly.

Question

Quizplus · Accepted Answer

Confounding occurs when the effects of two independent variables on the dependent variable cannot be distinguished from each other. In other words, it is not possible to completely isolate the effect of one independent variable from the other. This can create problems in interpreting the results of a study and making causal inferences.

When We Say That Two Independent Variables, Such as Gender