The "third variable" problem is associated with
A) the experimental method.
B) the correlational method.
C) the multivariate model.
D) the placebo effect.

Question

Quizplus · Accepted Answer

The "third variable" problem refers to the possibility that a third variable, not measured or controlled for in a study, may be responsible for the observed relationship between two variables. This problem is most commonly associated with correlational studies, as they do not manipulate variables and therefore cannot rule out the influence of extraneous variables.

The "Third Variable" Problem Is Associated with