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st: Propensity score matching: confidence intervals

From   Nyasha Tirivayi <>
Subject   st: Propensity score matching: confidence intervals
Date   Mon, 25 Jul 2011 23:22:34 +0200

Dear All

I would like to ask for your advice on the psmatch2 software.

I am using psmatch2 to determine program impact. I am using the kernel
and nearest neighbour estimators. Kindly advise on the following:

1. To report significance of ATT which test statistic should I use,
the one labelled T-stat or the z-statistic after bootstrapping?
2. If I use the T-stat, is there a way of obtaining confidence
intervals? I need to report the confidence intervals and p-valuesl for
a medical journal.

Kindly advise

N. Tirivayi
Post-doc Fellow
Maastricht University
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