If you have two main effects, and one main effect is significant, this means that ______.
A)The other main effect must be significant.
B)The interaction effect must be significant.
C)The interaction effect must not be significant.
D)The other main effect and the interaction effect may or may not be significant.

Question

Quizplus · Accepted Answer

The significance of one main effect does not necessarily indicate anything about the significance of the other main effect or the interaction effect, so it is possible that they may or may not be significant.

If You Have Two Main Effects, and One Main Effect