This article describes a SAS/IML program that performs the significance test of the mediating variable in a three-variable relationship. In testing the mediating variable, the equality of two regression coefficients is tested.
Get full access to this article
View all access options for this article.
References
1.
Baron, R. M. , & Kenny, D. A. (1986). The moderator-mediator variable distinction in social psychological research: Conceptual, strategic and statistical considerations. Journal of Personality and Social Psychology, 51, 1173-1182.
2.
Clogg, C. C. , Petkova, E., & Shihadeh, E. S. (1992). Statistical methods for analyzing collapsibility in regression models. Journal of Educational Statistics, 17, 51-74.
3.
James, L. R. , & Brett, J. M. (1984). Mediators, moderators, and tests for mediation. Journal of Applied Psychology, 69, 307-321.
4.
SAS Institute . (1990a). SAS guide to macro processing (Version 6, 2nd ed.). Cary, NC: Author.
5.
SAS Institute . (1990b). SAS/IML software: Usage and reference (Version 6). Cary, NC: Author.
6.
Woodworth, R. S. (1927). Dynamic psychology. In C. Murchison (Ed.), Psychologies of 1925 (pp. 111-126). Worcester, MA: Clark University Press.
7.
Zedeck, S. (1971). Problems with the use of "moderator variables."Psychological Bulletin, 76, 295-310.
