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IMBALANCE: Stata module to check covariate imbalance before and after matching

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Author Info
Shenyang Guo () (University of North Carolina at Chapel Hill)
Abstract

imbalance calculates absolute standardized difference in covariate means (ASAM) before matching (dx) and after matching (dxm), as described by Haviland, Nagin, and Rosenbaum (2007). It allows the analyst to evaluate whether matching balances an observed covariate between treated and control observations.

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File URL: http://fmwww.bc.edu/repec/bocode/i/imbalance.ado
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File Function: program code
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File URL: http://fmwww.bc.edu/repec/bocode/i/imbalance.hlp
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File Function: help file
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File URL: http://fmwww.bc.edu/repec/bocode/c/cds.dta
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File Function: example data file
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Publisher Info
Software component provided by Boston College Department of Economics in its series Statistical Software Components with number S457043.

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Programming language: Stata
Requires: Stata version 8.2
Date of creation: 15 May 2009
Date of revision:
Handle: RePEc:boc:bocode:s457043

Note: This module may be installed from within Stata by typing "ssc install imbalance". Windows users should not attempt to download these files with a web browser.
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Related research
Keywords: covariate; matching;

Statistics
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This page was last updated on 2009-11-14.

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