Which of the following is an advantage of a repeated-measures ANOVA over a one-way ANOVA?
A) Repeated-measures ANOVA is more efficient
B) Repeated-measures ANOVA eliminates variance due to participants
C) Repeated-measures ANOVA is more powerful
D) All of the other alternatives are correct.

Question

Quizplus · Accepted Answer

Repeated-measures ANOVA is more efficient because it requires fewer participants as the same participants are used across all conditions. It eliminates variance due to participants because each participant acts as their own control, thus controlling for individual differences. It is more powerful because it can detect effects more easily due to reduced error variance from controlling for individual differences.

Which of the Following Is an Advantage of a Repeated-Measures