Mediation
This week's class focuses on using regression to test mediation. More generally, we discuss the issue of controlling for alternative effects and spurious relationships. In this context you might find the hemline index interesting.
Primary Readings
Hayes, A. F. (2013). Introduction to mediation, moderation, and conditional process analysis. New York: The Guilford Press. Chapter 1 [pdf]
Zhao, Lynch, and Chen (JCR 2010) -- Reconsidering Baron and Kenny: Myths and Truths About Mediation Analysis [^pdf]
Handout on using process [html]
Secondary Readings
Preacher, K. J., & Hayes, A. F. (2008). Asymptotic and resampling strategies for assessing and comparing indirect effects in multiple mediator models. Behavior Research Methods, 40, 879-891
Hayes, A. F. (2009). Beyond Baron and Kenny: Statistical mediation analysis in the new millennium. Communication Monographs, 76(4), 408-420
Software tools
PROCESS macro for SPSS and SAS
Download latest from http://www.processmacro.org or use this (possibly old) zip file (zip)
Documentation:
Brief handout [html]
Hayes, A. F. (2013). Introduction to mediation, moderation, and conditional process analysis. New York: The Guilford Press. [web page]