Journal
PSYCHOLOGICAL METHODS
Volume 14, Issue 4, Pages 301-322Publisher
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/a0016972
Keywords
single-level mediation; multilevel mediation; Bayesian inference; credible interval
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Funding
- NIDA NIH HHS [DA09757, R01 DA009757-09, R01 DA009757] Funding Source: Medline
- NIMH NIH HHS [R01 MH040859, MH40859] Funding Source: Medline
- NATIONAL INSTITUTE OF MENTAL HEALTH [R01MH040859] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE ON DRUG ABUSE [R01DA009757, R37DA009757] Funding Source: NIH RePORTER
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In this article, we propose Bayesian analysis of mediation effects. Compared with conventional firequentist mediation analysis, the Bayesian approach has several advantages. First, it allows researchers to incorporate prior information into the mediation analysis, thus potentially improving the efficiency of estimates. Second, under the Bayesian mediation analysis, inference is straightforward and exact, which makes it appealing for studies with small samples. Third, the Bayesian approach is conceptually simpler for multilevel mediation analysis. Simulation studies and analysis of 2 data sets are used to illustrate the proposed methods.
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