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st: Estimating program impact


From   Armen Martirosyan <armen_martirosyan@wvi.org>
To   statalist@hsphsun2.harvard.edu
Subject   st: Estimating program impact
Date   Thu, 7 Jun 2012 02:10:08 +0400

Dear Statalist

This is more statistics question rather Stata but i would appreciate if 
somebody can share any thoughts. I am analyzing data from experimental 
study with one intervention and one control group. For several variables i 
have detected statistical difference between intervention and control 
group at baseline measurement but no any stat difference at end-line 
measurement. Can i infer that difference at baseline is actually  program 
effect or i still need to do difference-in-difference (DiD) analysis?. i 
think i can make that inference without DiD but would appreciate if 
somebody shares any thoughts on this or any previous experience with this 
type of results. 

Thanks for your consideration, armen
___________________________________
Armen Martirosyan
skype: armen_mol
armen_martirosyan@wvi.org 
 
 
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