Introduction to Mediation, Moderation, and Conditional Process Analysis: A Regression-Based Approach

Methodology in the Social Sciences

by Andrew F. Hayes

Explaining the fundamentals of mediation and moderation analysis, this engaging book also shows how to integrate the two using an innovative strategy known as conditional process analysis. Procedures are described for testing hypotheses about the mechanisms by which causal effects operate, the conditions under which they occur, and the moderation of mechanisms. Relying on the principles of ordinary least squares regression, Andrew Hayes carefully explains the estimation and interpretation of direct and indirect effects, probing and visualization of interactions, and testing of questions about moderated mediation. Examples using data from published studies illustrate how to conduct and report the analyses described in the book. Of special value, the book introduces and documents PROCESS, a macro for SPSS and SAS that does all the computations described in the book. The companion website (www.afhayes.com) offers free downloads of PROCESS plus data files for the book's examples.

Unique features
*Compelling examples (presumed media influence, sex discrimination in the workplace, and more) with real data; boxes with SAS, SPSS, and PROCESS code; and loads of tips, including how to report mediation, moderation and conditional process analyses.
*Appendix that presents documentation on use and features of PROCESS. 
*Online supplement providing data, code, and syntax for the book's examples.

Genres: Textbooks, Research

507 pages, Hardcover

First published January 1, 2013

About the author

Andrew F. Hayes, PhD, is Professor of Quantitative Psychology and Professor of Communication at The Ohio State University. He is the author of Statistical Methods for Communication Science and coeditor of the Sage Sourcebook on Advanced Data Analysis Methods for Communication Research, and has published many journal articles and book chapters in the areas of research methods, data analysis, public opinion, political communication, social psychology, and numerous other topics. Dr. Hayes is one of the founding editors of Communication Methods and Measures, for which he serves as Editor-in Chief through 2015. He teaches research design and data analysis at the undergraduate and graduate levels and frequently conducts workshops on moderation and mediation analysis throughout the world.

Reviews

[Dana]

Finally, an official book on this topic with all the info. in one place!

This will be so much better than hunting around on Preacher & Hayes' website and through their numerous publications to find instructions for that one, specific analysis we need.

[Daniel Christensen · Rating 5 out of 5]

Ok, so the only reason I bought the book is because I installed the PROCESS macro, and when you go to the hep doc it just tells you to buy the book. This seemed a bit mean to me.
That said, book is well written, with some nice insights into how the author thinks about statistics, and it's a good introduction to mediation-moderation.

[Courtney Koletar · Rating 5 out of 5]

This book is impeccably written. It's the most accessible stats textbook I've ever read.

[Becca Johnson · Rating 5 out of 5]

Super helpful for people who want to understand stats a bit better!

[Tara · Rating 5 out of 5]

Definitely adding this to my ‘must have’ list of textbooks. It will come in handy for dissertation and beyond.

[Dianne · Rating 5 out of 5]

This is the first advanced stats book I've read cover-to-cover and have understood! Dare I say that I actually enjoyed it? The new statistics are gaining momentum and are here to stay. This book is a miracle in its clarity. It is a rare find and should be on every researcher's bookshelf.