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ERIC Number: EJ921795
Record Type: Journal
Publication Date: 2011
Pages: 22
Abstractor: As Provided
Reference Count: 55
ISSN: ISSN-1070-5511
Alternative Methods for Assessing Mediation in Multilevel Data: The Advantages of Multilevel SEM
Preacher, Kristopher J.; Zhang, Zhen; Zyphur, Michael J.
Structural Equation Modeling: A Multidisciplinary Journal, v18 n2 p161-182 2011
Multilevel modeling (MLM) is a popular way of assessing mediation effects with clustered data. Two important limitations of this approach have been identified in prior research and a theoretical rationale has been provided for why multilevel structural equation modeling (MSEM) should be preferred. However, to date, no empirical evidence of MSEM's advantages relative to MLM approaches for multilevel mediation analysis has been provided. Nor has it been demonstrated that MSEM performs adequately for mediation analysis in an absolute sense. This study addresses these gaps and finds that the MSEM method outperforms 2 MLM-based techniques in 2-level models in terms of bias and confidence interval coverage while displaying adequate efficiency, convergence rates, and power under a variety of conditions. Simulation results support prior theoretical work regarding the advantages of MSEM over MLM for mediation in clustered data. (Contains 1 figure, 6 tables, and 8 footnotes.)
Psychology Press. Available from: Taylor & Francis, Ltd. 325 Chestnut Street Suite 800, Philadelphia, PA 19106. Tel: 800-354-1420; Fax: 215-625-2940; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A