Which of the Following Is True of the Mediators in Multiple

Multiple Choice

Which of the following is true of the mediators in multiple regression analysis?

A) A mediator changes the relationship between a predictor and a criterion variable.
B) A mediator establishes "how" or "why" one variable predicts or causes a criterion variable.
C) A mediator can be either categorical or continuous.
D) A mediator addresses "when" or "for whom" a variable most strongly predicts or causes an outcome variable.