Increasing variance within groups ____ the likelihood of finding a difference between the treatment conditions.
A) increases
B) decreases
C) does not affect
D) increases, then decreases

Question

Quizplus · Accepted Answer

Increasing variance within groups makes it harder to detect a difference between treatment conditions because the data points are more spread out, making any potential effects of the treatments less apparent.

Increasing Variance Within Groups ____ the Likelihood of Finding a Difference