[Ssm-help] Re: mathematical calculations

[Patrick E. M. <pe...@th...>]

Alan and Baris,

There are many documents that cover the UCON method in Brad's code.  I am not sure what level of documentation you wish but I concur with Alan that Baker's book is excellent - and free to boot!  The URL for Baker's full, online version is:

http://edres.org/irt/

The algorithms might be slightly different from Baker's code.  Sorry I can't be more specific but there are so many references available for each little part that it might take me a month to cobble together a complete list.  

HTH

On Wed, 31 Mar 2004 12:26:30 -0800 (PST)
Alan Mead <cub...@ya...> wrote:

> Baris,
> 
> Patrick may be able to help you partially but I am not aware of any
> document describing the calculations used in Brad's software.  You
> may be aware, Brad passed away--so we cannot ask him.
> 
> I have found Frank Baker's estimation book to be the most detailed
> explanation of IRT estimation in general.  I can get the full
> citation is you like.  The book is a little expensive.
> 
> May I ask why you are interested in the calculations?
> 
> -Alan Mead
> 
> --- Baris Sahin <ba...@mi...> wrote:
> > 
> > Dear all,
> > 
> > I need information about mathematical calculations used in your
> > project on sourceforge.net.
> > Item parameter estimation, vs...
> > 
> > Dou you have any documents, or bookmarks about that.
> > 
> > Thank you,
> > 
> > baris
> > bs...@mi...
> > 
> 
> 
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-- 

Cheers,

Patrick
--------------------------------------------
Patrick E. McKnight, Ph.D.
Research Assistant Professor
Evaluation Group for Analysis of Data
University of Arizona
Department of Psychology
Tucson, AZ  85721
520-621-5463
pem@u.arizona.edu