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stat.ME2022
On the probability of invalidating a causal inference due to limited external validity
Tenglong Li
External validity is often questionable in empirical research, especially in randomized experiments due to the trade-off between internal validity and external validity. To quantif…
stat.ME2021
A generalized bootstrap procedure of the standard error and confidence interval estimation for inverse probability of treatment weighting
Tenglong Li, Jordan Lawson
The inverse probability of treatment weighting (IPTW) approach is commonly used in propensity score analysis to infer causal effects in regression models. Due to oversized IPTW wei…
stat.ME2020
The probability of a robust inference for internal validity and its applications in regression models
Tenglong Li, Kenneth A. Frank
The internal validity of observational study is often subject to debate. In this study, we define the unobserved sample based on the counterfactuals and formalize its relationship…