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Re: st: propensity score matching question


From   TA Stat <tastat@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: propensity score matching question
Date   Wed, 20 Jun 2012 22:15:29 +0700

Additional information, particularly your research questions and
hypotheses, is needed. PS matching is for balancing measured
covariates among groups being compared.

Peter

On Wed, Jun 20, 2012 at 9:48 PM, Nyasha Tirivayi <ntirivayi@gmail.com> wrote:
> Hello
>
> I am trying to do an impact evaluation of a social program. I am doing
> this retrospectively. However I have just found out that the
> beneficiaries have different baselines and end dates i.e. they got
> into the program at different times and exited at different times.
> Since I do not have the same baseline for everyone, is propensity
> score matching still ideal for my evaluation? How would I account for
> the varying times in program participation?   If not, what other
> method can I use in Stata?
>
> Kindly advise
>
> Regards
>
> N. Tirivayi
> Maastricht
> Netherlands
>
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