TY - CONF T1 - Pinpointing PRAXIS I CAT characteristics through simulation procedures T2 - Paper presented at the annual meeting of the National Council on Measurement in Education Y1 - 1994 A1 - Eignor, D. R. A1 - Folk, V.G., A1 - Li, M.-Y. A1 - Stocking, M. L. JF - Paper presented at the annual meeting of the National Council on Measurement in Education CY - New Orleans, LA ER - TY - JOUR T1 - Adaptive estimation when the unidimensionality assumption of IRT is violated JF - Applied Psychological Measurement Y1 - 1989 A1 - Folk, V.G., A1 - Green, B. F. VL - 13 ER -