How do we test for moderation? a. Look at the effect of the moderator variable i

Question

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.

Explanation / Answer

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.

Y = i + aX + bM + cXM + E

moderation is tested with help of coeffient "c"

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