All other things being equal, a repeated-measures design is _______ than the corresponding between-subjects design.
A) less powerful.
B) more powerful.
C) The two designs have comparable power.
D) We cannot predict this.

Question

Quizplus · Accepted Answer

A repeated-measures design is typically more powerful than the corresponding between-subjects design because it controls for individual differences between participants. By using the same participants in all conditions, the variability within the sample is reduced, increasing the likelihood of finding significant effects.

All Other Things Being Equal, a Repeated-Measures Design Is _______