Moderated Mediation Analyses of a Frequently-Used Types of Categorical Variable
FANG Jie1, WEN Zhong-lin2, HE Zi-jie3
(1. Institute of New Development & Department of Applied Psychology, Guangdong University of Finance & Economics, Guangzhou 510320, China; 2. Center for Studies of Psychological Application & School of Psychology, South China Normal University, Guangzhou 510631, China; 3. The faculty of economics, Guangdong University of Finance & Economics, Guangzhou 510320, China)
Abstract：When a mediation effect is moderated by a moderator, the effect is termed moderated mediation and the model is a moderated mediation model. Given that the categorical variable is frequently encountered in social science studies, how to analyze moderated mediation models with the categorical variable becomes a noteworthy issue. The methods for analyzing dual-stage moderated mediation models with multi-categorical independent variable and dual-stage moderated mediation models with multi-categorical moderator was illustrated. An empirical example is employed to demonstrate how to conduct moderated mediation analysis of categorical variable by Mplus and SPSS macro PROCESS software. Directions for future studies on categorical moderated mediation are discussed at the end of the paper. The above methods and steps could be expended to binary dependent variable, first-stage or second-stage moderated mediation models, and mediated moderation model.
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