In a two-way ANOVA, an F involving a comparison among the level means of a factor is referred to as a test for the significance of
a. a main effect. c. a factorial design.
b. the interaction effect. d. a level effect.
Question 2
For which of the three F-tests in a two-way ANOVA do you collapse across the levels of the other factor(s) in computing the means?
a. The A main effect
b. The B main effect
c. The interaction effect
d. Both the A main effect and the B main effect