Meg developed a within-subjects design for examining foreign language development and learning. If there are three different conditions and all participants are assessed in each condition then Meg would ideally need a minimum of _____ to ensure appropriate statistical power.
A) 15 participants total
B) 30 participants total
C) 45 participants in each group
D) 45 participants to start, but more participants as the study continues

Question

Quizplus · Accepted Answer

A within-subjects design typically requires fewer participants than a between-subjects design because each participant serves as their own control. However, to ensure appropriate statistical power and account for potential dropouts or data issues, a minimum of 30 participants is often recommended.

Meg Developed a Within-Subjects Design for Examining Foreign Language Development