The major disadvantage with repeated-measures designs is that they
A) require too many subjects.
B) are less powerful than between-subjects designs.
C) have a funny looking summary table.
D) are subject to the influence of carry-over effects.

Question

Quizplus · Accepted Answer

Repeated-measures designs expose participants to multiple conditions, so there is a risk of carry-over effects, in which an earlier condition affects performance on a later condition. This can lead to confounding and reduce the validity of the results.

The Major Disadvantage with Repeated-Measures Designs Is That They