TY - CONF T1 - An investigation of procedures for estimating error indexes in proficiency estimation in CAT T2 - Paper presented at the annual meeting of the American Educational Research Association Y1 - 2002 A1 - Shyu, C.-Y. A1 - Fan, M. A1 - Thompson, T, A1 - Hsu, Y. JF - Paper presented at the annual meeting of the American Educational Research Association CY - New Orleans LA ER -