[Rasch] Multidimensional Unfolding Software

Garett Howardson garett.howardson at gmail.com
Thu May 2 23:27:48 EST 2013


Thank you Doug. I will be sure to check that out.

Thanks,
Garett

On 5/1/13, Doug Lawson <lawsondrdm at gmail.com> wrote:
> Garett,
>
> You might want to try:
>
> http://cran.r-project.org/web/packages/munfold/index.html
>
> Doug
>
>
>
> <http://sites.google.com/site/lawsondrdm/>
>
>
> On Wed, May 1, 2013 at 10:18 AM, Garett Howardson <
> garett.howardson at gmail.com> wrote:
>
>> Hello everyone,
>>
>> I realize this isn't a Rasch question and so I apologize if it is
>> inappropriate for the list, but I'm working on my dissertation and am in
>> uncharted areas. As such, I'm not even sure I know where to start looking
>> so I thought I'd begin here.
>>
>> I'm wondering if anyone can point me in the direction of software that
>> can
>> implement the multidimensional unfolding model for IRT? I have a set of
>> dichotomous items that I think conform to a circumplex structure. Drawing
>> from Mokken et. al (2001), I think I can test this using their IRT-based
>> model, but it requires Van Schuur's multidimensional unfolding program
>> (MUDFOLD), which is Windows based. Does anyone know if there is Mac
>> software that implements MUDFOLD, or even better yet an R program?
>>
>> I apologize again that isn't specifically a Rasch question, but I'm so
>> far
>> out of my expertise area that I don't even know where to start looking. I
>> appreciate any help that anyone may be able to provide.
>>
>> References:
>>
>> Mokken, R. J., van Schuur, W. H., & Leeferink, A. J. (2001). The circles
>> of our minds: A nonparametric IRT model for the circumplex. In A.
>> Boomsma,
>> M.A.J. van Duijin, & T. A. B. Snijders (Eds.), *Lecture notes in
>> statistics: Essays on item response theory. *New York, NY: Springer.
>>
>> Thank you and best regards,
>>
>> --
>> Garett Howardson
>> Doctoral Candidate
>> Department of Organizational Sciences
>> The George Washington University
>> 600 21st St. Washington, DC
>>
>>
>>
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>


-- 
Garett Howardson
Doctoral Candidate
Department of Organizational Sciences
The George Washington University
600 21st St. Washington, DC


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