If we calculated an effect size and found it was r = .21 which expression would best describe the size of effect?
A)large
B)small
C)small to medium
D)medium to large

Question

Quizplus · Accepted Answer

An effect size of r = .21 would be considered small to medium based on the following commonly used criteria: small effect size (r = .10), medium effect size (r = .30), and large effect size (r = .50).

If We Calculated an Effect Size and Found It Was