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Marginal Mediation Analysis: A New Framework For Interpretable Mediated Effects, Tyson S. Barrett
Marginal Mediation Analysis: A New Framework For Interpretable Mediated Effects, Tyson S. Barrett
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Mediation analysis is built to answer not only if one variable affects another, but how the effect takes place. However, it lacks interpretable effect size estimates in situations where the mediator (an intermediate variable) and/or the outcome is categorical or otherwise non-normally distributed. By integrating a powerful approach known as average marginal effects within mediation analysis—termed Marginal Mediation Analysis (MMA)—the issues regarding categorical mediators and/or outcomes are, in large part, resolved. This new approach allows the estimation of the indirect effects (those effects of the predictor that affect the outcome through the mediator) that are interpreted in the same way …