When checking for the significance of a main effect, the degrees of freedom for the numerator are the
A)number of levels of the main effect
B)number of levels of the main effect minus 1
C)number of levels of the main effect times 2
D)degrees of freedom for the denominator minus 1

Question

Quizplus · Accepted Answer

The degrees of freedom for the numerator when checking for the significance of a main effect are calculated as the number of levels of the main effect minus 1. This is because the degrees of freedom reflect the number of independent comparisons that can be made between the levels of the main effect.

When Checking for the Significance of a Main Effect, the Degrees