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Pituch, Keenan A.; Stapleton, Laura M. – Multivariate Behavioral Research, 2008
A Monte Carlo study compared the statistical performance of standard and robust multilevel mediation analysis methods to test indirect effects for a cluster randomized experimental design under various departures from normality. The performance of these methods was examined for an upper-level mediation process, where the indirect effect is a fixed…
Descriptors: Research Design, Monte Carlo Methods, Statistical Analysis, Error Patterns