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Direct linkImai, Kosuke; Jo, Booil; Stuart, Elizabeth A. – Multivariate Behavioral Research, 2011
In this commentary, we demonstrate how the potential outcomes framework can help understand the key identification assumptions underlying causal mediation analysis. We show that this framework can lead to the development of alternative research design and statistical analysis strategies applicable to the longitudinal data settings considered by…
Descriptors: Research Design, Statistical Analysis, Research Methodology, Longitudinal Studies
A Comparison of Single Sample and Bootstrap Methods to Assess Mediation in Cluster Randomized Trials
Pituch, Keenan A.; Stapleton, Laura M.; Kang, Joo Youn – Multivariate Behavioral Research, 2006
A Monte Carlo study examined the statistical performance of single sample and bootstrap methods that can be used to test and form confidence interval estimates of indirect effects in two cluster randomized experimental designs. The designs were similar in that they featured random assignment of clusters to one of two treatment conditions and…
Descriptors: Monte Carlo Methods, Research Design, Mediation Theory, Comparative Testing
