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

Question

Quizplus · Accepted Answer

The larger the within-groups (error) variance, the more variability there is within each group, making it more difficult to detect a significant difference between groups. This makes it more difficult to show the effects of experimental treatment.

The Larger the Within-Groups (Error)variance