TY - CHAP T1 - Item selection in polytomous CAT T2 - New developments in psychometrics Y1 - 2003 A1 - Veldkamp, B. P. ED - A. Okada ED - K. Shigenasu ED - Y. Kano ED - J. Meulman KW - computerized adaptive testing JF - New developments in psychometrics PB - Psychometric Society, Springer CY - Tokyo, Japan ER -