How Do We Test for Moderation

Multiple Choice

How do we test for moderation?

A) Look at the effect of the moderator variable in a regression in which the outcome is predicted from a predictor and the proposed moderator.
B) Look at the indirect effect of a predictor on an outcome variable via the proposed moderator.
C) Look at the reduction in the direct effect of a predictor on an outcome variable when the proposed moderator is also included.
D) Look at the interaction term in a regression in which the outcome variable is predicted from a predictor, the proposed moderator and their interaction.