How are propensity scores different from adding covariates in a regression, and when are they preferred to the latter?
I admit I'm relatively new to propensity scores and causal analysis. One thing that's not obvious to me as a newcomer is how the "balancing" using propensity scores is mathematically different from ...
From a statistical perspective, can one infer causality using propensity scores with an observational study?
Question: From the standpoint of statistician (or a practitioner), can one infer causality using propensity scores with an observational study (not an experiment)? Please, do not want to start a ...