If interaction is present in the two-way ANOVA model and a test of factor A results in failing to reject H₀, then:
A) the effect of factor A is not significant.
B) the effect of factor A is probably significant.
C) the effects of factor A and factor B are independent.
D) the effect of factor A is inconclusive.

Question

Quizplus · Accepted Answer

When interaction is present in a two-way ANOVA model, the main effects of the factors (such as factor A) cannot be interpreted in the usual way. The interaction suggests that the effect of one factor depends on the level of the other factor, making the main effect of factor A inconclusive without considering the interaction effect.

If Interaction Is Present in the Two-Way ANOVA Model and a Test