In computing effect sizes for a comparison of independent samples, our measure may be less than ideal if
A) we have heterogeneous variances and no control group.
B) the data are decidedly nonnormal.
C) we choose the wrong statistic for our denominator.
D) all of the above

Question

Quizplus · Accepted Answer

All of the mentioned factors (heterogeneous variances and no control group, decidedly nonnormal data, and choosing the wrong statistic for the denominator) can make the measure of effect size less than ideal in computing effect sizes for a comparison of independent samples.

In Computing Effect Sizes for a Comparison of Independent Samples