ERIC Number: EJ736328
Record Type: Journal
Publication Date: 2006
Pages: 33
Abstractor: Author
ISBN: N/A
ISSN: ISSN-1070-5511
EISSN: N/A
Available Date: N/A
Evaluation of an Approximate Method for Synthesizing Covariance Matrices for Use in Meta-Analytic SEM
Beretvas, S. Natasha; Furlow, Carolyn F.
Structural Equation Modeling: A Multidisciplinary Journal, v13 n2 p153-185 2006
Meta-analytic structural equation modeling (MA-SEM) is increasingly being used to assess model-fit for variables' interrelations synthesized across studies. MA-SEM researchers have analyzed synthesized correlation matrices using structural equation modeling (SEM) estimation that is designed for covariance matrices. This can produce incorrect model-fit chi-square statistics, standard error estimates (Cudeck, 1989), or both for parameters that are not scale free or that describe a scale-noninvariant model unless corrected SEM estimation is used to analyze the correlations. This study introduced univariate and multivariate approximate methods for synthesizing covariance matrices for use in MA-SEM. A simulation study assessed the approximate methods by estimating parameters in a scale-noninvariant model using synthesized covariances versus synthesized correlations with and without the appropriate corrections. Standard error bias was noted only for uncorrected analyses of pooled correlations. Chi-square model-fit statistics were overly conservative except when covariance matrices were analyzed. Benefits and limitations of this approximate method are presented and discussed.
Descriptors: Structural Equation Models, Matrices, Statistical Analysis, Synthesis, Simulation, Correlation, Evaluation Methods
Lawrence Erlbaum Associates, Inc., Journal Subscription Department, 10 Industrial Avenue, Mahwah, NJ 07430-2262. Tel: 800-926-6579 or 201-258-2200; Fax: 201-236-0072; e-mail: journals@erlbaum.com; Web site: https://www.erlbaum.com/journals.htm.
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A
Author Affiliations: N/A

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