when should propensity score be used why is ps a case does the propensity score match the treatments why propensity score is used only for the cohort study can a propensity score be used for a cohort study what is propensity test used for? which of the following would be used in a case-control study? when do you study a propensity score why use the propensity score when to use ps in case study which of the following is the best way to use a propensity score? propensity score is used for why is propensity score used in case-control studies when are case studies used why would pps be used in a case-control study what is ps in a case-control study? when to use propensity score as a study study? why is ps used in the case does propensity score match the untreated/untreated when should ps be used in case studies