TY - JOUR T1 - The effect of population distribution and methods of theta estimation on computerized adaptive testing (CAT) using the rating scale model JF - Educational and Psychological Measurement Y1 - 1997 A1 - Chen, S. A1 - Hou, L. A1 - Fitzpatrick, S. J. A1 - Dodd, B. VL - 57 ER -