TY  - BOOK
AU  - Paek, Insu 
AU  - Han, Kyung T. 
TI  - IRTPRO 2.1 for Windows (Item Response Theory for Patient-Reported Outcomes)
PY  - 2013///
CY  - USA
PB  - Sage
KW  - IRT
KW  - Multidimensional IRT
KW  - IRT software
N2  - This article reviews a new item response theory (IRT) model estimation program, IRTPRO 2.1, for Windows that is capable of unidimensional and multidimensional IRT model estimation for existing and user-specified constrained IRT models for dichotomously and polytomously scored item response data
UR  - https://doi/10.1177/0146621612468223
ER  -