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July 1, 2025Advances in Methods and Practices in Psychological ScienceOpen Access

Three Sensitivity-Analysis Methods to Assess Unmeasured Pretreatment Confounding Bias in Experimental Mediation Analysis

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Authors

DADiana Alvarez-BartoloJohns Hopkins UniversityDMDavid P. MacKinnonArizona State University

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Overview

Sensitivity analysis demonstrates confounding bias in experimental mediation, suggesting assessments of mediator influences.

Key Points

  • Results indicate that larger population effect sizes are less prone to confounding bias across sensitivity methods.
  • The correlated-residuals method, left-out-variables-error method, and phantom-variable method help assess bias.
  • A simulation study compares these methods, focusing on their effectiveness in addressing mediation analysis concerns.
  • Understanding confounding bias can enhance causal interpretations in psychological research regarding mediators and outcomes.

Cite This Study

Alvarez-Bartolo et al. (2025) studied this question.

synapsesocial.com/papers/68af4cebad7bf08b1ead6e5ehttps://doi.org/10.1177/25152459251355586
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Controlling for Large Sets of Measured Confounders in Mediation Analysis: Comparison of Bayesian Model Averaging, the LASSO, and Path Analysis2025
  2. 2Sensitivity analysis for unmeasured pretreatment confounders in causal mediation analysis with debiased machine learning2026
  3. 3Causal mediation analysis: How to avoid fooling yourself that <i>X</i> causes <i>Y</i>2024
  4. 4Comparison of methods for mediation analysis with multiple correlated mediators2024
  5. 5Practical causal mediation analysis: extending nonparametric estimators to accommodate multiple mediators and multiple intermediate confounders2024 · 12 citations