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Comparing Indirect Effects in Different Groups in Single-Group and Multi-Group Structural Equation Models.


ABSTRACT: In this article, we evaluated the performance of statistical methods in single-group and multi-group analysis approaches for testing group difference in indirect effects and for testing simple indirect effects in each group. We also investigated whether the performance of the methods in the single-group approach was affected when the assumption of equal variance was not satisfied. The assumption was critical for the performance of the two methods in the single-group analysis: the method using a product term for testing the group difference in a single path coefficient, and the Wald test for testing the group difference in the indirect effect. Bootstrap confidence intervals in the single-group approach and all methods in the multi-group approach were not affected by the violation of the assumption. We compared the performance of the methods and provided recommendations.

SUBMITTER: Ryu E 

PROVIDER: S-EPMC5425601 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Comparing Indirect Effects in Different Groups in Single-Group and Multi-Group Structural Equation Models.

Ryu Ehri E   Cheong Jeewon J  

Frontiers in psychology 20170511


In this article, we evaluated the performance of statistical methods in single-group and multi-group analysis approaches for testing group difference in indirect effects and for testing simple indirect effects in each group. We also investigated whether the performance of the methods in the single-group approach was affected when the assumption of equal variance was not satisfied. The assumption was critical for the performance of the two methods in the single-group analysis: the method using a  ...[more]

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