An effect size of 0.51 would indicate _____ difference between two groups.

Question

Quizplus · Accepted Answer

An effect size of 0.51 would indicate a medium difference between two groups, as effect sizes of 0.2, 0.5, and 0.8 are generally considered small, medium, and large, respectively. Therefore, B is the best choice. A would be incorrect as it signifies a small difference, while C signifies a large difference. D cannot be the answer as any non-zero effect size indicates a difference between two groups.

An Effect Size of 0