The smaller the within-groups (error) variance, _____.
A) the more difficult it becomes to show the effects of experimental variance
B) the easier it becomes to show the effects of experimental variance
C) the more difficult it becomes to perform the F test
D) the easier it becomes to show a causal effect of the dependent variable on the independent variable

Question

Quizplus · Accepted Answer

A smaller within-groups variance indicates less variability within each group, making it easier to detect differences between groups due to the experimental manipulation, thus showing the effects of experimental variance more clearly.

The Smaller the Within-Groups (Error) Variance, _____