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st: Updated versions of several modules on SSC

From   Jean-Benoit Hardouin <>
To   Statalist <>
Subject   st: Updated versions of several modules on SSC
Date   Mon, 23 Jan 2006 14:43:04 +0100

Thanks to Kit Baum, several modules have been updated on SSC :
- -raschtest- is a module which allows analysing data by a Rasch model. Test of Differential Item Functioning (DIF) and Standardized OUTFIT and INFIT statistics have been added
- -geekel2d- is a module which estimates the parameters of several unidimendional or bidimensional Items Response Models. The algorithm has been improved, and is faster
- -simirt- is a module which simulates data by Item Responses Models. Simulation of polytomous (ordinal) variables by a Rating Scale Model have been added
- -msp- is a module which realizes a Mokken Scale Procedure to select items in unidimensional scales. English langage has been improved in the outputs and in the help file

These modules can been downloaded on SSC
. ssc describe raschtest
. ssc describe geekel2d
. ssc describe simirt
. ssc describe msp
and are described on my website :
Best regards
Jean-Benoit Hardouin

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Jean-Benoit Hardouin
PhD in Public Health/ Biostatistics
Regional Health Observatory - Orléans - France
Email :
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