A Toolkit for a Score-Based Balance Metric for the Synthetic Control Method

A Tutorial for the synth_asmd STATA Program

by Priscillia Hunt

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Lack of balance results in the confounding of treatment effect estimates. In the context of the synthetic control method, researchers may be unsure whether a synthetic control group and a treated group are balanced. This toolkit provides background information on the synth_asmd program for Stata. This program can be used to calculate the Absolute Standardized Mean Difference (ASMD) as a test of balance between a synthetic control unit and a treated unit of the synthetic control method. This toolkit includes an example of the synth_asmd program commands used for calculating the mean ASMD and maximum ASMD as well as the sample code and datasets used in the tutorial.

Table of Contents

  • Chapter One


  • Chapter Two

    An Example

  • Chapter Three


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This research was funded by the RAND-USC Schaeffer Opioid Policy Tools and Information Center (OPTIC) and carried out within RAND Health Care.

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