One simple main effect for caffeine is much less thanthe other simple main effect for caffeine. Your best guessis that
A) you have a main effect for caffeine
B) you do not have a main effect for caffeine
C) you have an interaction between caffeine and some other variable
D) you do not have an interaction between caffeine and some other variable

Question

Quizplus · Accepted Answer

A large difference in simple main effects suggests that the effect of caffeine depends on the level of another variable, indicating an interaction.

One Simple Main Effect for Caffeine Is Much Less Thanthe