[Rasch] Multidimensional Unfolding Software

Doug Lawson lawsondrdm at gmail.com
Thu May 2 02:32:51 EST 2013


You might want to try:




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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