inst/CITATION
Steinfeld, J. and Reif, M. (2026). PP: Estimation of person parameters for the 1,2,3,4-PL model and the GPCM. R package version 0.6.4-1. https://github.com/jansteinfeld/PP
@Manual{,
title = {PP: Estimation of person parameters for the 1,2,3,4-PL model and the GPCM.},
author = {Jan Steinfeld and Manuel Reif},
year = {2026},
note = {R package version 0.6.4-1},
url = {https://github.com/jansteinfeld/PP},
}