Within-subjects designs cope with the problem of error variance by:
A) matching subjects prior to random assignment to conditions.
B) treating each individual as a separate unit in the statistical analysis of data.
C) using the same subjects in all treatment conditions.
D) using different subjects in each treatment condition.

Question

Quizplus · Accepted Answer

Within-subjects designs use the same subjects in all treatment conditions, which helps control for individual differences and reduces error variance.

Within-Subjects Designs Cope with the Problem of Error Variance By