If you have a significant interaction, you should
A) think carefully about any main effects you might have.
B) ignore any main effects you might have.
C) ignore the interaction unless there is a main effect.
D) none of the above

Question

Quizplus · Accepted Answer

If you have a significant interaction, it is important to think carefully about any main effects you might have in addition to interpreting the interaction. Main effects can still provide valuable information about the individual factors being studied, even if they are not the primary focus of the analysis. Ignoring main effects can lead to incomplete or misleading interpretations of the data. Option C is incorrect because there can still be a significant interaction even if there are no main effects present. Option B is also incorrect because it is never recommended to ignore main effects without a good reason.

If You Have a Significant Interaction, You Should