IRT Models For Unfolding -- Commercial Software

Item Response Theory Models For Unfolding

Commercial Software

MUDFOLD: Multiple Unidimensional Unfolding

iec ProGAMMA
P.O. Box 841
9700 AV Groningen
The Netherlands
Phone: 31 50 636900
E-mail: gamma.post@gamma.rug.nl

Assessment Systems Corporation
2233 University Avenue
Suite 200
St. Paul, MN 55114 USA
(651) 647-9220
E-mail: info@assess.com
PARELLA: Parametric Model for Parallelogram Analysis

iec ProGAMMA
P.O. Box 841
9700 AV Groningen
The Netherlands
Phone: 31 50 636900
E-mail: gamma.post@gamma.rug.nl

Assessment Systems Corporation
2233 University Avenue
Suite 200
St. Paul, MN 55114 USA
(651) 647-9220
E-mail: info@assess.com
RUMMFOLDss for Windows: A program for unfolding single stimulus responses.

Assessment Systems Corporation
2233 University Avenue
Suite 200
St. Paul, MN 55114 USA
Phone: (651) 647-9220
E-mail: info@assess.com
RUMMFOLDpp for Windows: A program for unfolding pairwise preference responses.

Assessment Systems Corporation
2233 University Avenue
Suite 200
St. Paul, MN 55114 USA
(651) 647-9220
E-mail: info@assess.com