If there is in fact a small, but real, difference between treatment conditions, which design is the most likely to detect that difference?
A) within-subjects design
B) random-groups design
C) between-groups design
D) split-litter design

Question

Quizplus · Accepted Answer

Within-subjects design is most likely to detect small differences between treatment conditions because each participant serves as their own control, reducing variability due to individual differences.

If There Is in Fact a Small, but Real, Difference