Samuel R. Sommers
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Credits and acknowledgments borrowed from other sources and reproduced, with permission, in this textbook appear on the appropriate page within the text or on pages 567–572.
Copyright © 2016, 2013, 2010 by Pearson Education, Inc. or its affiliates. All Rights Reserved. Printed in the United States of America. This publication is protected by copyright, and permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise. For information regarding permissions, request forms and the appropriate contacts within the Pearson Education Global Rights & Permissions department, please visit www.pearsoned.com/permissions/.
Library of Congress Cataloging-in-Publication Data Aronson, Elliot. Social psychology / Elliot Aronson, Timothy D. Wilson, Robin M. Akert, Samuel R. Sommers. — Ninth Edition. pages cm Revised editon of the authors’ Social psychology, 2013. ISBN 978-0-13-393654-4 (Student Edition) 1. Social psychology. I. Wilson, Timothy D. II. Akert, Robin M. III. Title. HM1033.A78 2016 302—dc23 2015016513
10 9 8 7 6 5 4 3 2 1
Student Edition ISBN-10: 0-13-393654-6 ISBN-13: 978-0-13-393654-4
Books à la Carte ISBN-10: 0-13-401239-9 ISBN-13: 978-0-13-401239-1
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To my grandchildren: Jacob, Jason, Ruth, Eliana, Natalie, Rachel, and Leo. My hope is that your capacity for empathy and compassion will help make
the world a better place.
—E.A.
To my family, Deirdre Smith, Christopher Wilson, and Leigh Wilson
—T.D.W.
To my mentor, colleague, and friend, Dane Archer
—R.M.A.
To my students—past, present, and future—for making coming to work each morning fun, educational, and unpredictable.
—S.R.S.
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iv
1 Introducing Social Psychology 1
2 Methodology: How Social Psychologists Do Research 23
3 Social Cognition: How We Think About the Social World 51
4 Social Perception: How We Come to Understand Other People 84
5 The Self: Understanding Ourselves in a Social Context 119
6 The Need to Justify Our Actions: The Costs and Benefits of Dissonance Reduction 157
7 Attitudes and Attitude Change: Influencing Thoughts and Feelings 188
8 Conformity: Influencing Behavior 226
9 Group Processes: Influence in Social Groups 269
10 Interpersonal Attraction: From First Impressions to Close Relationships 303
11 Prosocial Behavior: Why Do People Help? 344
12 Aggression: Why Do We Hurt Other People? Can We Prevent It? 375
13 Prejudice: Causes, Consequences, and Cures 413
Social Psychology in Action 1 Using Social Psychology to Achieve a Sustainable and Happy Future 455
Social Psychology in Action 2 Social Psychology and Health 476
Social Psychology in Action 3 Social Psychology and the Law 496
Brief Contents
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v
Preface xi About the Authors xvii Special Tips for Students xix
1 Introducing Social Psychology 1 Defining Social Psychology 3 Try IT! How Do Other People Affect your Values? 3
Social Psychology, Philosophy, Science, and Common Sense 4 How Social Psychology Differs from Its Closest Cousins 6
Try IT! Social Situations and Shyness 7