An interaction between factors cannot occur unless
A)there is a main effect for at least one of the two factors.
B)there is a main effect for both of the two factors.
C)there is no main effect for either of the two factors.
D)The existence of an interaction is independent of the main effects.

Question

Quizplus · Accepted Answer

An interaction between factors can occur regardless of whether there are main effects for the factors. The presence of an interaction is independent of the main effects.

An Interaction Between Factors Cannot Occur Unless