Intro to Epidemiology
Propensity score matching is a statistical technique used to reduce bias in the estimation of treatment effects by pairing individuals with similar characteristics based on their likelihood of receiving a treatment. This method helps create comparable groups in observational studies, thus aiding causal inference and minimizing confounding variables that can distort results. By balancing covariates between treated and untreated subjects, propensity score matching strengthens the validity of conclusions drawn from epidemiological research.
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