Software by Brad Hanson
This page gives links to some software I have written that is freely available
The following are some C++ source code libraries which I use for numerical
- IRT Command Language (ICL) - Application
that can perform single- or multiple-group estimation of the 1-, 2-, and 3-parameter
logistic item response models for dichotomous items, and the partial credit
model and generalized partial credit model for polytomous items. ICL supercedes
the Estimation Program for Dichotomous Item Response Models (EPDIRM) by including
estimation of polytomous as well as dichotomous models.
- Equating with the Multiple-Choice Model
- Applications to perform equating (IRT scale transformation) for the multiple-choice
and nominal response models as described in this paper.
Compiled versions of these programs are available for Windows 95/NT. The source
code is also available.
- Equating Software
- Some test equating software for Mac OS and Windows 95 that I helped to write
is available from the Iowa
Bradley Hanson's software may be used and distributed under this BSD license.
Return to Software by Brad Hanson
Return to Brad Hanson's Home Page
Return to OpenIRT Home Page
URL of this page: http://www.OpenIRT.com/b-a-h/software/index.html
Last updated: November 16, 2014.