First published in 1987. This volume presents papers from the Fifth Ontario Symposium on Personality and Social Psychology, held at the University of Waterloo, August 21-23, 1984. The contributors are active researchers in the area of social influence. One of the purposes of this volume is to provide an accurate picture of our current knowledge about social influence processes. Thus, the chapters describe important recent developments in this area. A second and perhaps more important purpose of this volume is to bring together scholars with different perspectives on the social influence process in order to stimulate further research and theorizing in this area.