TY - CONF T1 - Effect of item selection on item exposure rates within a computerized classification test T2 - Paper presented at the annual meeting of the National Council on Measurement in Education Y1 - 1998 A1 - Kalohn, J.C. A1 - Spray, J. A. JF - Paper presented at the annual meeting of the National Council on Measurement in Education CY - San Diego CA ER -