In comparison to between-subjects designs, within-subjects designs.
A)require fewer participants
B)may be more sensitive to the effects of the independent variable
C)are more susceptible to multiple treatment effects
D)all the above

Question

Quizplus · Accepted Answer

Within-subjects designs require fewer participants as each participant serves as their own control, which reduces error variance. They may also be more sensitive to the effects of the independent variable as there is less individual variability between participants. However, they are more susceptible to multiple treatment effects as each participant is exposed to all conditions, which can lead to practice or fatigue effects.

In Comparison to Between-Subjects Designs, Within-Subjects Designs