A within-subjects factorial design would control for:
A) internal validity.
B) random error.
C) individual variation.
D) history.

Question

Quizplus · Accepted Answer

A within-subjects factorial design involves the same subjects participating in all conditions of the experiment, which controls for individual variation because each participant serves as their own control. This design reduces the impact of differences between participants that could affect the outcome, such as personality, intelligence, and background.

A Within-Subjects Factorial Design Would Control For