Using Cohen's criteria, the size of effect found in problem 59 is _________.
A) small
B) medium
C) large
D) Cohen's criteria doesn't apply

Question

Quizplus · Accepted Answer

Cohen's criteria measures effect size as small (d=0.2), medium (d=0.5), and large (d=0.8). Without knowing the actual value of d in problem 59, we cannot say for certain which category it falls into. However, based on the language used in the question ("significant difference," "practically significant"), it is likely that the effect size is large. Therefore, the best choice is C, large.

Using Cohen's Criteria, the Size of Effect Found in Problem