A finite-sample valid method discovers and selects covariate-interpretable subgroups with effect modification in matched observational studies, exactly controlling subgroup-level FDR and incorporating sensitivity analysis for unmeasured confounding.
Define the events E+ = β(J, ˜R, X)>0 andE − = β(J, ˜R, X)<0
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Adaptive discovery of effect modification in matched observational studies
A finite-sample valid method discovers and selects covariate-interpretable subgroups with effect modification in matched observational studies, exactly controlling subgroup-level FDR and incorporating sensitivity analysis for unmeasured confounding.