TY - CONF T1 - To weight or not to weight – balancing influence of initial and later items in CAT T2 - Paper presented at the annual meeting of the National Council on Measurement in Education Y1 - 2002 A1 - Chang, Hua-Hua A1 - Ying, Z. JF - Paper presented at the annual meeting of the National Council on Measurement in Education CY - New Orleans LA N1 - {PDF file, 252 KB} ER -