Propensity Scores for Repeated Treatments

A Tutorial for the iptw Function in the TWANG Package

Lane F. Burgette, Beth Ann Griffin, Daniel F. McCaffrey

ToolPublished Sep 14, 2017

This tutorial describes the use of the TWANG package in R to estimate inverse probability of treatment weights (IPTWs) when one has time varying treatments or sequences of treatments over time. Specifically, it describes the "iptw" function (which stands for Inverse Probability of Treatment Weight), the proper syntax for using the function, and the features the function contains.

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RAND Style Manual
Burgette, Lane F., Beth Ann Griffin, and Daniel F. McCaffrey, Propensity Scores for Repeated Treatments: A Tutorial for the iptw Function in the TWANG Package, RAND Corporation, TL-136/2-NIDA, 2017. As of September 17, 2024: https://www.rand.org/pubs/tools/TL136z2.html
Chicago Manual of Style
Burgette, Lane F., Beth Ann Griffin, and Daniel F. McCaffrey, Propensity Scores for Repeated Treatments: A Tutorial for the iptw Function in the TWANG Package. Santa Monica, CA: RAND Corporation, 2017. https://www.rand.org/pubs/tools/TL136z2.html.
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