For a two-sample t test, an effect size that qualifies as large is
A) 0.05
B) 0.20
C) 0.80
D) all of the descriptive alternatives are correct
E) none of the descriptive alternatives are correct.

Question

Quizplus · Accepted Answer

In the context of a two-sample t-test, an effect size of 0.80 is considered large according to Cohen's conventions. Cohen's d is a measure of effect size used to indicate the standardized difference between two means. Values of 0.2, 0.5, and 0.8 are typically considered small, medium, and large effect sizes, respectively.

For a Two-Sample T Test, an Effect Size That Qualifies