If, in a 2 X 2 experiment, you know that there are no main effects,then you know
A) that an interaction is definitely present
B) that an interaction probably is present
C) that an interaction probably isn't present
D) nothing whatsoever about the interaction

Question

Quizplus · Accepted Answer

The presence or absence of main effects does not provide any information about the presence or absence of an interaction effect. Main effects and interactions are independent of each other in factorial designs.

If, in a 2 X 2 Experiment, You Know That