期刊
JOURNAL OF CONSUMER PSYCHOLOGY
卷 22, 期 4, 页码 582-594出版社
JOHN WILEY & SONS LTD
DOI: 10.1016/j.jcps.2012.03.006
关键词
Mediation analysis; Categorical variables; Binary variables
Many scholars are interested in understanding the process by which an independent variable affects a dependent variable, perhaps in part directly and perhaps in part indirectly, occurring through the activation of a mediator. Researchers are facile at testing for mediation when all the variables are continuous, but a definitive answer had been lacking heretofore as to how to analyze the data when the mediator or dependent variable is categorical. This paper describes the problems that arise as well as the potential solutions. In the end, a solution is recommended that is both optimal in its statistical qualities as well as practical and easily implemented: compute z(mediation). (C) 2012 Society for Consumer Psychology. Published by Elsevier Inc. All rights reserved.
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