Which of the following is an advantage of within-subjects designs?
A) fewer research participants needed
B) attrition cannot occur
C) no testing effects
D) instrumentation not necessary

Question

Quizplus · Accepted Answer

Within-subjects designs require fewer participants because the same group of participants is exposed to all conditions or treatments, eliminating the need for a separate control group. This contrasts with between-subjects designs, where different groups are used for each condition, requiring more participants to achieve the same power.

Which of the Following Is an Advantage of Within-Subjects Designs