TY - CONF T1 - Test-score comparability, ability estimation, and item-exposure control in computerized adaptive testing T2 - Paper presented at the Annual meeting of the National Council on Measurement in Education Y1 - 2003 A1 - Chang, Hua-Hua A1 - Ying, Z. JF - Paper presented at the Annual meeting of the National Council on Measurement in Education CY - Chicago IL ER -