A major disadvantage of within-subjects designs is that
A) they require more subjects
B) subject differences may obscure treatment effects
C) the effect of one treatment may alter the effectiveness of another
D) one must use fewer independent variables

Question

Quizplus · Accepted Answer

In within-subjects designs, the same subjects are exposed to all treatments, which can lead to carryover effects where the effect of one treatment influences the response to subsequent treatments.

A Major Disadvantage of Within-Subjects Designs Is That