ITSAMATCH: Stata module to perform matching in multiple group interrupted time-series analysis

Ariel Linden

Statistical Software Components from Boston College Department of Economics

Abstract: itsamatch is a data pre-processing procedure that identifies units not-exposed to the intervention that will best serve as matched controls for the single treatment unit, in multiple group interrupted time-series analysis (ITSA). Matches are defined by assessing balance on the baseline level and trend of each variable specified in the varlist -- where balance is determined by a user-defined minimum significance level (P-value). itsamatch generates a list of control group identifiers that can be passed on to itsa to assess treatment effects. Under the ignorability assumption, we approximate a randomized experiment by evaluating outcomes using matches that are balanced on observed pretreatment characteristics.

Language: Stata
Requires: Stata version 11
Keywords: interrupted time series; matching; covariate balance; causal inference; quasi-experimental studies (search for similar items in EconPapers)
Date: 2017-11-16, Revised 2024-05-02
Note: This module should be installed from within Stata by typing "ssc install itsamatch". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.
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Downloads: (external link)
http://fmwww.bc.edu/repec/bocode/i/itsamatch.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/i/itsamatch.sthlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/i/itsa.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/i/itsa.sthlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/g/glm2.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/c/cigsales.dta sample data file (application/x-stata)

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