Compared to within-subjects designs, between-subjects designs require relatively ____.
A) larger numbers of participants
B) smaller numbers of participants
C) less control of individual difference
D) more concern for practice effects

Question

Quizplus · Accepted Answer

Between-subjects designs require larger numbers of participants because participants are only exposed to one level of the independent variable, so more participants are needed to ensure that the groups are equivalent and the results are representative.

Compared to Within-Subjects Designs, Between-Subjects Designs Require Relatively ____