Which of the following is an advantage of within-subjects designs?
A) fewer research participants needed
B) attrition can't happen
C) testing effects don't happen
D) instrumentation isn't needed

Question

Quizplus · Accepted Answer

Within-subjects designs require fewer research participants since each participant is being exposed to all conditions of the study. This can be more cost-effective and efficient than recruiting a larger number of participants for between-subjects designs. However, within-subjects designs can be vulnerable to order effects and carryover effects, so researchers need to take steps to control for these potential confounds. Therefore, options B, C, and D are not advantages of within-subjects designs as attrition, testing effects, and instrumentation can still occur.

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