Is it possible to have an interaction when there are no main effects in a factorial design?
A) Yes
B) No
C) Can't tell
D) Only if the factorial design does not contain a quasi-experimental variable.

Question

Quizplus · Accepted Answer

Yes, it is possible to have an interaction when there are no main effects in a factorial design. This means that the effect of one independent variable may depend on the level of another independent variable, even if there is no significant main effect for either variable on its own.

Is It Possible to Have an Interaction When There Are