TY - GEN A1 - Żółtak, Tomasz A1 - Golonka, Grzegorz PB - Educational Research Institute L1 - http://www.jbc.bj.uj.edu.pl/Content/409107/PDF/3-4-zoltak-golonka-does-guessing-matter.pdf L2 - http://www.jbc.bj.uj.edu.pl/Content/409107 KW - ability estimates KW - guessing KW - IRT KW - 2PLM KW - 3PLM T1 - Does guessing matter? Differences between ability estimates from 2PL and 3PL IRT models in case of guessing UR - http://www.jbc.bj.uj.edu.pl/dlibra/publication/edition/409107 ER -