TY - CONF T1 - Using judgments of item difficulty to change answers on computerized adaptive vocabulary tests T2 - Paper presented at the annual meeting of the American Educational Research Association Y1 - 2002 A1 - Vispoel, W. P. A1 - Clough, S. J. A1 - Bleiler, T. JF - Paper presented at the annual meeting of the American Educational Research Association CY - New Orleans LA N1 - #VI02-01 ER -