BASICS OF STRUCTURLA (cid:4) EQUATION MODELING To members of my family, who made this project possible, (cid:4) I dedicate this book: (cid:4) my parents, George and Helen; (cid:4) my wife, Barbara; (cid:4) and our children, Kristie and Dan. (cid:4) BASIC S OF STRUCTURA L EQUATIO N MODELIN G GEOFFREY M. MARUYAMA (cid:4) SAGE Publication s  International Educational and Professional Publisher Thousan d Oaks London New Delhi Copyrigh t Ï 1998 by Sage Publications , Inc. All right s reserved . No part of this book may be reproduce d or utilize d in any form or by an y means , electroni c or mechanical , includin g photocopying , recording , or by an y informatio n storag e an d retrieva l system , withou t permissio n in writin g fro m th e publisher . For information : SAG E Publications , Inc . (cid:4) 2455 Teller Road (cid:4) Thousan d Oaks , Californi a 91320 (cid:4) E-mail : [email protected] m (cid:4) SAG E Publication s Ltd (cid:4) 1 Oliver' s Yard (cid:4) 55 City Road (cid:4) Londo n EC1Y ISP (cid:4) SAG E Publication s Indi a Pvt Ltd (cid:4) B-42, Panchshee l Enclav e (cid:4) Post Box 4109 (cid:4) New Delh i 110 017 (cid:4) Printe d in th e Unite d State s of Americ a Library of Congress Cataloging-in-Publication Data Maruyama , Geoffre y M. Basics of structura l equatio n modeling/b y Geoffre y M. Maruyama . p. cm. (cid:4) Include s bibliographica l reference s an d index . (cid:4) ISBN 0-8039-7408-6 (cloth).—ISB N 0-8039-7409-4 (pbk. ) (cid:4) 1. Multivariat e analysis . 2. Socia l sciences—Statistica l methods . I. Title . QA278.M37 4 1997 97-4839 (cid:4) 519.5'35—dc2 1 (cid:4) 03 10 9 8 7 6 Acquiring Editor: C. Debora h Laughto n Editorial Assistant: Eilee n Carr Production Editor: Dian a E. Axelse n Production Assistant: Denii e Sanioy o l^plsitttrlDesipur: Mario n Warre n Covtr Dtsigntr: Candic e Harma n Print Buyer: Anna Chin c t X t Prefac e (cid:5) XI (cid:4) Acknowledgment s (cid:5) xv (cid:4) PART 1: Backgroun d 1.(cid:5) What Does It Mean to Model Hypothesize d (cid:4) Causa l Processe s Wit h Nonexperimenta l Data ? (cid:4) Method s for Structura l Equatio n Analyse s 9 (cid:4) Overvie w 12 (cid:4) Histor y and Logic of Structura l Equatio n Modelin g 15 (cid:4) Histor y 15 (cid:4) Sewell Wight 15 (cid:4) Path Analysis in the Social Sciences 17 (cid:4) Unidirectiona l Flow Model s 17 (cid:4) Movin g Beyon d Pat h Analysi s in Structura l (cid:4) Equatio n Modelin g Researc h 20 (cid:4) Why Use Structura l Equatio n Modelin g Techniques ? 20 (cid:4) I PART 2: Basic Approache s to Modelin g With Singl e Observe d Measure s of Theoretica l Variable s 3. The Basics: Path Analysi s and Partitionin g of Varianc e 29 (cid:4) Logic of Correlation s and Covariance s 30 (cid:4) Decomposin g Relationship s Betwee n Variable s (cid:4) Int o Causa l an d Noncausa l Component s 35 (cid:4) Direct Causal Effects 39 (cid:4) Indirect Causal Effects 40 (cid:4) Noncausal Relationships Due to Shared Antecedents 41 (cid:4) Noncausal Unanalyzed Prior Association Relationships 42 (cid:4) Approache s for Decomposin g Effects 44 (cid:4) Determinin g Degree s of Freedo m of Model s 48 (cid:4) Presentin g Partia l Regressio n an d Partia l (cid:4) Correlatio n as Path Model s 49 (cid:4) Partial Regression 49 (cid:4) Partial Correlation 51 (cid:4) Peer Popularit y and Academi c Achievement : (cid:4) An Illustratio n 53 (cid:4) 4. Effects of Collinearit y on Regressio n (cid:4) and Path Analysi s 60 (cid:4) Regressio n and Collinearit y 62 (cid:4) Illustratin g Effects of Collinearit y 66 (cid:4) Confidenc e Interval s for Correlation s 70 (cid:4) Ridg e or Reduce d Varianc e Regressio n 73 (cid:4) 5. Effects of Rando m and Nonrando m Error (cid:4) on Path Model s 79 (cid:4) Measuremen(cid:5) t Erro r 79 (cid:4) Background 79 (cid:4) Specifying Relationships Between Theoretical (cid:4) Variables and Measures 81 (cid:4) Random Measurement Error 84 (cid:4) Nonrandom Error 87 (cid:4) Metho d Varianc e and Multitrait-Multimetho d Model s 88 (cid:4) Method Variance 89 (cid:4) Additive Multitrait-Multimethod Models 92 (cid:4) Nonadditive Multitrait-Multimethod Models 96 (cid:4) Summar y (cid:5) 97 (cid:4) 6.(cid:5) Recursiv e an d Longitudina l Models : Wher e Causalit y (cid:4) Goes in More Than One Direction and Where Data (cid:4) Are Collected Over Time 99 (cid:4) Model s With Multidirectiona l Path s 100 (cid:4) Logic of Nonrecursive Models 100 (cid:4) Estimation of Nonrecursive Models 103 (cid:4) Mode l Identificatio n(cid:4) 105 Longitudina l Model s(cid:4) 108 Logic Underlying Longitudinal(cid:4) Models 109 Terminology of Panel Models (cid:4) 110 Identification(cid:4) 111 Stability(cid:4) 112 Temporal Lags in Panel Models 115 (cid:4) Growth Across Time in Panel Models 117 (cid:4) Stability of Causal Processes 118 (cid:4) Effects of Excluded Variables 119 (cid:4) Correlatio n and Regressio n Approache s for Analyzin g (cid:4) Pane l Dat a 120 (cid:4) Summar y 122 (cid:4) I(cid:5) PART 3: Factor Analysi s and Path Modelin g 7. Introducin g the Logic of Factor Analysi s and (cid:4) Multipl e Indicator s to Pat h Modelin g 131 (cid:4) Facto r Analysi s(cid:5) 132 (cid:4) Logic of Factor Analysis 132 (cid:4) Exploratory Factor Analysis 136 (cid:4) Confirmatory Factor Analysis 139 (cid:4) Use of Confirmatory Factor Analysis Techniques 140 (cid:4) Constrainin g Relation s of Observe d Measure s With Factor s 147 (cid:4) Confirmator y Factor Analysis and Method Factors 148 (cid:4) The Basic Confirmatory Factor Analysis Path (cid:4) Model for Multitrait-Multimethod Matrices 148 (cid:4) Confirmatory Factor Analysis Approaches to (cid:4) Multitrait-Multimethod Matrices and (cid:4) Model Identification 152 (cid:4) Summary of Confirmatory Factor Analysis (cid:4) and Multitrait-Multimethod Models 154 (cid:4) Initia l Testin g of Plausibilit y of Models : Consistenc y Tests 154 (cid:4) Number of Indicators and Consistency Tests 155 (cid:4) Costner's Original Consistency Model 158 (cid:4) I PART 4: Laten t Variabl e Structura l Equatio n Model s 8. Puttin g It All Together : Laten t Variabl e (cid:4) Structura l Equatio n Modelin g 177 (cid:4) The Basic Laten t Variabl e Structura l Equatio n Mode l 178 (cid:4) The Measurement Model 178 (cid:4) Reference Indicators 181 (cid:4) The Structural Model 184 (cid:4) An Illustratio n of Structura l Equatio n Model s 187 (cid:4) Model Specification 187 (cid:4) Identification 188 (cid:4) Equations and Matrices 192 (cid:4) Basic Idea s Underlyin g FhVSignificanc e Testin g 195 (cid:4) Individual Parameter Significance 195 (cid:4) Model Fitting 196 (cid:4) The Measurement Model 201 (cid:4) The Structural Model 201 (cid:4) The Variance/Covariance Matrices 202 (cid:4) 9. Usin g Laten t Variabl e Structura l Equatio n (cid:4) Modelin g to Examin e Plausibilit y of Model s 203 (cid:4) Exampl e 1: A Longitudina l Pat h Mode l 204 (cid:4) Exampl e 2: A Nonrecursiv e Multiple-Indicato r Mode l 209 (cid:4) Exampl e 3: A Longitudina l Multiple-Indicato r (cid:4) Pane l Mode l 214 (cid:4) 10. Logic of Alternativ e Model s and Significanc e Tests 234 (cid:4) Neste d Model s 235 (cid:4) Tests of Overal l Mode l Fit 238 (cid:4) Absolute Indexes 242 (cid:4) Relative Indexes 243 (cid:4) Adjusted Indexes 245 (cid:4) Fit Indexe s for Comparin g Non-Neste d Model s 246 (cid:4) Settin g Up Neste d Model s 247 (cid:4) Why Model s May Not Fit 249 (cid:4) Illustratin g Fit Tests 250 (cid:4) 11. Variation s on the Basic Laten t Variabl e (cid:4) Structura l Equatio n Mode l 255 (cid:4) Analyzin g Structura l Equatio n(cid:5) Model s Whe n Multipl e (cid:4) Population s Are Availabl e 257 (cid:4) Overview of Methods 257 (cid:4) Comparing Processes Across Samples 259 (cid:4) Testing Plausibility of Contraints 261 (cid:4) Constraints in the Measurement Model 261 (cid:4) Constraints in the Structural Model 262 (cid:4) When and How to Impose Equality Constraints 262 (cid:4) Second-Orde r Facto r Model s 265 (cid:4) All-Y Model s 268 (cid:4) 12.(cid:5) Wrappin g Up 271 (cid:4) Criticism s of Structura l Equatio n Modelin g Approache(cid:5)s 272 (cid:4) "Internal" Critics 272 (cid:4) "External" Critics 275 (cid:4) Emerging Criticisms 277 (cid:4) Post Hoc Mode l Modificatio n 278 (cid:4) Topics Not Covere d 280 (cid:4) Power Analysis 280 (cid:4) Nonlinear Relationships 280 (cid:4) Alternative Estimation Techniques 281 (cid:4) Analysis of Noncontinuous Variables 282 (cid:4) Adding Analysis of Means 282 (cid:4) Multilevel Structural Equation Modeling 282 (cid:4) Writing Up Papers Containing Structural (cid:4) Equation Modeling Analysis 283 (cid:4) Selecting a Computer Program to Do Latent (cid:4) Variable Structural Equation Modeling 283 (cid:4) Appendi x A: A Brief Introductio n to Matri x Algebr a (cid:4) and Structura l Equatio n Modelin g 285 (cid:4) What Is a Matrix? 285 (cid:4) Matrix Operations 288 (cid:4) Inverting Matrices 291 (cid:4)
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