Library of Congress Cataloging-in-Publication Data

Roeckelein, Jon E.
Dictionary of theories, laws, and concepts in psychology / Jon E.
Roeckelein.
p. cm.
Includes bibliographical references (p.) and index.
ISBN 0–313–30460–2 (alk. paper)
1. Psychology—Dictionaries. I. Title.
BF31.R625 1998
150'.3—dc21 97–43941

British Library Cataloguing in Publication Data is available.

Copyright © 1998 by Jon E. Roeckelein

All rights reserved. No portion of this book may be
reproduced, by any process or technique, without the
express written consent of the publisher.

Library of Congress Catalog Card Number: 97–43941

ISBN: 0-313-30460-2

First published in 1998

Greenwood Press, 88 Post Road West, Westport, CT 06881

An imprint of Greenwood Publishing Group, Inc.

Printed in the United States of America

The paper used in this book complies with the
Permanent Paper Standard issued by the National
Information Standards Organization (Z39.48–1984).

10 9 8 7 6 5 4 3 2 1

-iv-