Fatigue and practice effects are more serious for between-subjects designs than for within-subjects designs.

Question

Quizplus · Accepted Answer

In within-subjects designs, participants are exposed to all conditions of the experiment, which can lead to fatigue and practice effects as they undergo multiple treatments. In between-subjects designs, each participant is exposed to only one condition, reducing the risk of these effects.

Fatigue and Practice Effects Are More Serious for Between-Subjects Designs