INTRODUCTION TO MEDIATION, MODERATION, AND CONDITIONAL PROCESS ANALYSIS, SECOND EDITION: A REGRESSION-BASED APPROACH (METHODOLOGY IN THE SOCIAL SCIENCES) By Andrew F. Hayes – Hardcover *Excellent Condition*.
INTRODUCTION TO MEDIATION, MODERATION, AND CONDITIONAL PROCESS ANALYSIS, SECOND EDITION: A REGRESSION-BASED APPROACH (METHODOLOGY IN THE SOCIAL SCIENCES) By Andrew F. Hayes – Hardcover *Excellent Condition*.