According to Jacob Cohen's guidelines for interpreting effect size, d-values that fall in the range of __________ represent a small effect.
A) .00 to .20
B) .10 to .20
C) .20 to .49
D) .10 to .30

Question

Quizplus · Accepted Answer

According to Cohen's guidelines, a d-value of .20 to .49 represents a small effect. Therefore, choice C is the correct answer as it falls in this range. The other choices either do not include the correct range for a small effect (A and B) or include ranges that are higher than what Cohen considers to be a small effect (D).

According to Jacob Cohen's Guidelines for Interpreting Effect Size, D-Values