1. Group Influence Copyright © 2005 by The McGraw-Hill Companies, Inc. Social Psychology by David G. Myers 8 th Edition Group Influence

2. Copyright © 2005 by The McGraw-Hill Companies, Inc. Social Facilitation The presence of others Crowding: The presence of many others Why are we aroused in the presence of others? Evaluation apprehension Driven by distraction Mere presence © Rob Crandall/ Stock, Boston

3. Group Influence Copyright © 2005 by The McGraw-Hill Companies, Inc. Social Loafing Many hands make light work Social loafing in everyday life © James Lemass/ The picture Club

4. Group Influence Copyright © 2005 by The McGraw-Hill Companies, Inc. Deindividuation Doing together what we would not do alone –Group size –Physical anonymity –Arousing and distracting activities Diminished self- awareness © Bill Horsman/ Stock, Boston © Philip Zimbardo

5. Group Influence Copyright © 2005 by The McGraw-Hill Companies, Inc. Group Polarization The case of the “risky shift” Do groups intensify opinions? –Group polarization experiments –Naturally occurring group polarization Explaining polarization –Informational influence –Normative influence

6. Group Influence Copyright © 2005 by The McGraw-Hill Companies, Inc. Groupthink Symptoms of groupthink Critiquing groupthink Preventing groupthink Groupthink and group influence © NASA

7. Group Influence Copyright © 2005 by The McGraw-Hill Companies, Inc. Minority Influence Consistency Self-confidence Defections from the majority Is leadership minority influence?

8. Group Influence Copyright © 2005 by The McGraw-Hill Companies, Inc. Supplemental Slides

9. Group Influence Copyright © 2005 by The McGraw-Hill Companies, Inc. Group Polarization

10. Group Influence Copyright © 2005 by The McGraw-Hill Companies, Inc. Transformational Leaders

11. Group Influence Copyright © 2005 by The McGraw-Hill Companies, Inc. Transformational Leaders