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st: Estimating program impact

From   Armen Martirosyan <>
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 
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