TY - CONF T1 - Updated item parameter estimates using sparse CAT data T2 - Paper presented at the annual meeting of the National Council on Measurement in Education Y1 - 2002 A1 - Smith, R. L. A1 - Rizavi, S. A1 - Paez, R. A1 - Rotou, O. JF - Paper presented at the annual meeting of the National Council on Measurement in Education CY - New Orleans LA N1 - {PDF file, 986 KB} ER -