What is the difference between the 'IPW' and 'AIPW' methods?

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Réponse

The 'IPW' (Inverse Probability Weighting) method requires the observed outcome and predicted treatment probabilities. The 'AIPW' (Augmented Inverse Probability Weighting) method is a doubly robust method that also requires predicted counterfactual outcome values in addition to what IPW requires.
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Other questions about caEffect
What is the difference between the 'IPW', 'REGADJ', and 'AIPW' methods? How do I specify the potential outcomes to be estimated? How can I obtain confidence intervals for the causal effect estimates? Is it possible to get confidence intervals for the estimates? What estimation methods can be used with the caEffect action?
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