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Statistical Power Analysis for the Behavioral Sciences

Statistical Power Analysis for the Behavioral Sciences Second Edition Statistical Power Analysis for the Behavioral Sciences Second Edition Jacob Cohen Department of Psychology New York University New York, New York ~ LAWRENCE ERLBAUM ASSOCIATES, PUBLISHERS Copyright 1988 by Lawrence Erlbaum Associates All rights reserved. No part of this book may be reproduced in any form, by photostat, microform, retrieval system, or by any other means, without the prior written permission of the publisher. Library of Congress Cataloging-in-Publication Data Cohen, Jacob. Statistical Power Analysis for the Behavioral Sciences I Jacob Cohen. - 2nd ed. Bibliography: p. Includes index. ISBN 0-8058-0283-5 1. Social Sciences - Statistical methods. 2. Probabilities. I. Title. 1988 300'.1 '5195-dcl9 88-12110 Books published by Lawrence Erlbaum Associates are printed on acid-free paper, and their bindings are chosen for strength and durability.

Chapter 10. Set Correlation and Multivariate Methods 10.1. Introduction and Use 10.2. The Effect Size Index: f2 10.3. Determining the Power 10.4. Determining Sample Size Chapter 11. Some Issues in Power Analysis 11.1. Introduction 11.2. Effect Size 11.3. Reliability 11.4. "Qualifying" Dependent Variables Chapter 12. Computational Procedures ix ...

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