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Invited Address: Master Lecture--Getting From X to Y: Mediating Variables in Psychology

CE Credit: 1

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Length: 50 minutes

Session offered by Psi Beta. The search for mediating mechanisms has long been a focus of psychology beginning with the application of the Stimulus Organism Response model to the modern development of prevention and treatment programs. This presentation gives an overview of the research questions the mediation model can help answer and describes modern methodological developments for investigating mediational processes. Single and multiple mediator models are used to illustrate several current issues in significance testing, confidence interval estimation, and causal inference. Several new methods are described to address these issues primarily based on investigating assumptions of statistical mediation analysis. Modern causal inference approaches provide a way to identify limitations of mediation analysis and address the sensitivity of the analysis to violation of assumptions. Longitudinal mediation models help resolve temporal inference for the mediation model. The presentation ends with future directions in the search for mediating mechanisms in theory and practice.

Learning Objective 1
Outline theoretical mediating processes in psychology.

Learning Objective 2
Describe modern methods to assess mediating processes in psychology.

Learning Objective 3
Discuss future directions for mediation analysis methodology.

Presenter(s)
David MacKinnon, PhD; Kenneth J. Sher, PhD


Supplementary Materials

  • MacKinnon APA Master Lecture
  • MacKinnon References
  • MacKinnon References