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Re: st: Rasch Model with Rating Scale


From   Stas Kolenikov <skolenik@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Rasch Model with Rating Scale
Date   Thu, 2 Dec 2010 10:14:31 -0500

On Thu, Dec 2, 2010 at 10:05 AM, TA Stat <tastat@gmail.com> wrote:
> Do you have any idea about using stata for Rasch analysis with Rating
> scale?  Any command/syntax available?

You can check user-written -reoprob- and -gllamm- to see if you can
twist their arms to do what you need. They would use a different
jargon and might use different identification conditions. But if your
thresholds are the same across items, that would be quite easy to
estimate.

If you cannot find anything right away, it is not too difficult to
write it up using -ml-. Of course if you need scores then that's a
little bit of extra work. (Scores are easy to obtain from -gllamm-
though.)

-- 
Stas Kolenikov, also found at http://stas.kolenikov.name
Small print: I use this email account for mailing lists only.

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