The difference between a within-subjects and a between-subjects design is:
A) there is no problem of group equivalence with between-subject designs
B) confounding cannot occur with a between-subjects design
C) each subject serves as his or her own control in a within-subjects design
D) a given subject's behavior is only measured once in a within-subjects design

Question

Quizplus · Accepted Answer

In a within-subjects design, each participant is exposed to all conditions or treatments, allowing for direct comparison of their responses across these conditions. This means each participant effectively acts as their own control, which helps to control for individual differences that might otherwise confound the results.

The Difference Between a Within-Subjects and a Between-Subjects Design Is