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Re: st: Matching samples in Stata


From   Paula Arce <paulaarce@rocketmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Matching samples in Stata
Date   Mon, 1 Oct 2012 16:09:53 +0100 (BST)

Thank you - I will check it out!




----- Original Message -----
From: Nick Cox <njcoxstata@gmail.com>
To: statalist@hsphsun2.harvard.edu
Cc: 
Sent: Monday, 1 October 2012, 15:54
Subject: Re: st: Matching samples in Stata

Never used it. However, Barbara Sianesi's talk at

http://www.stata.com/meeting/germany10/germany10_sianesi.pdf

may prove useful.

On Mon, Oct 1, 2012 at 3:39 PM, Paula Arce <paulaarce@rocketmail.com> wrote:
>
> Thank you - I downloaded the command -
>
> Even after looking at the help command I am slightly unsure what I need to specify where.
>
> Should I first type the variable that codes the student type (1 for medical 0 for the rest) followed by the SES variables I want to match them  on?
>
> psmatch2 student_type SES1 SES2, out(outvar)
>
> Is the out(outvar) command going to produce a variable which lets me know what participants from the 'other student' group are used as match for the medics? if not how can I obtain this?

From: Nick Cox <njcoxstata@gmail.com>

> The command -psmatch2- [not a macro in Stata terms] must be downloaded
> from SSC before you can read its help.

On Mon, Oct 1, 2012 at 3:11 PM, Wameq Raza <wameq.r@gmail.com> wrote:

>> Please look up PSMATCH2 in the help file.
>
> On Mon, Oct 1, 2012 at 4:08 PM, Paula Arce <paulaarce@rocketmail.com> wrote:
>
>>> I am interested in comparing medical students vs. other students on a number of measures from a survey study.  The medical student subgroup accounts for 12% of the total sample.
>>>
>>> I would, therefore, like to match the medical students with a sub-group of the other students based on socio-demographic variables  - so that the two samples are more similar in size.
>>>
>>> How can I achieve this in Stata? is there a matching command/macro I can download and use?  Has anyone done anything similar and can share some tips?
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