手法を比較

	ベイズ逆確率重み付け	ベイズ的傾向スコアマッチング
分野	因果推論	因果推論
系統	Regression model	Regression model
提唱年	2015	2012
提唱者	Saarela, Stephens, Moodie & Klein (2015); Liao & Zigler (2020)	Kaplan & Chen (2012); foundational PSM by Rosenbaum & Rubin (1983)
種類	Bayesian causal weighting estimator	Bayesian causal inference / matching
原典	Saarela, O., Stephens, D. A., Moodie, E. E. M., & Klein, M. B. (2015). On risk prediction and characterisation of treatment effects in a Bayesian framework using the propensity score. Statistics in Medicine, 34(14), 2170-2185.	Kaplan, D., & Chen, J. (2012). A Two-Step Bayesian Approach for Propensity Score Analysis: Simulations and Case Study. Psychometrika, 77(3), 581-609.
別名	Bayesian IPW, BIPW, Bayesian propensity-weighted estimation, Bayesian marginal structural weighting	Bayesian PSM, BPSM, Bayesian matching estimator, Bayesian propensity weighting
関連	6	6
概要	Bayesian Inverse Probability Weighting (Bayesian IPW) extends the classical IPW estimator by placing prior distributions over the propensity-score model parameters and propagating that uncertainty into the causal-effect estimate. The result is a posterior distribution for the average treatment effect that fully accounts for both propensity-score estimation uncertainty and outcome-model uncertainty, enabling credible-interval inference rather than relying on asymptotic approximations.	Bayesian Propensity Score Matching (Bayesian PSM) extends classical propensity score matching by placing a prior distribution over the propensity model parameters and propagating posterior uncertainty through the matching and outcome stages. Introduced formally by Kaplan and Chen (2012), it offers a principled account of estimation uncertainty that frequentist matching commonly ignores, and allows incorporation of substantive prior knowledge about treatment selection.