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st: AW: Sensitivity test of treatment effect when there the matrix is not (1x1)


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: AW: Sensitivity test of treatment effect when there the matrix is not (1x1)
Date   Tue, 4 Aug 2009 17:32:54 +0200

<> 



*************
ssc d sensatt
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HTH
Martin


-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Menale Kassie
Gesendet: Dienstag, 4. August 2009 17:31
An: statalist@hsphsun2.harvard.edu
Betreff: st: Sensitivity test of treatment effect when there the matrix is
not (1x1)



Dear All,
 
I was trying to test the sensitivity of treatment effect due to selection on
unobserved variables (hidden bias). I have a continuous response (outcome)
variable. I checked the 'rbounds' command. However, it implements
sensitivity tests for matched (1x1) pairs only. In my case the treated and
control group are not matched one to one (see below). In other words the
matrix is not (1x1).  Is there other command that I can use in such
circumstances. 
 
Thanks,
Menale

ATT estimation with Nearest Neighbor Matching method
(random draw version)
Bootstrapped standard errors
---------------------------------------------------------
n. treat.   n. contr.         ATT   Std. Err.           t
---------------------------------------------------------
      370         180     874.543     262.418       3.333
---------------------------------------------------------
Note: the numbers of treated and controls refer to actual
nearest neighbour matches



      

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