Response to Pearl's comments on principal stratification
- PMID: 21686084
- PMCID: PMC3114954
- DOI: 10.2202/1557-4679.1330
Response to Pearl's comments on principal stratification
Abstract
Dr. Pearl invites researchers to justify their use of principal stratification. This comment explains how the use of principal stratification simplified a complex mediational problem encountered when evaluating a smoking cessation intervention's effect on reducing smoking withdrawal symptoms.
Keywords: causal inference; mediation; principal stratification; smoking cessation interventions.
Comment on
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Principal stratification--a goal or a tool?Int J Biostat. 2011 Mar 30;7(1):20. doi: 10.2202/1557-4679.1322. Int J Biostat. 2011. PMID: 21556288 Free PMC article. Review.
References
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- Imai K, Keele L, Yamamoto T. Identification, inference and sensitivity analysis for causal mediation effects. Statistical Science. 2010;25(1):51–71. doi: 10.1214/10-STS321. - DOI
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- Pearl J. Causality: Models, Reasoning, and Inference. Second Edition. New York: Cambridge University Press; 2009. p. 127.
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- Rosenbaum PR, Rubin DB. The central role of the propensity score in observational studies for causal effects. Biometrika. 1983;70(1):41–55. doi: 10.1093/biomet/70.1.41. - DOI
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