TY - CONF T1 - Computerized adaptive testing: A comparison of three content balancing methods T2 - Paper presented at the annual meeting of the National Council on Measurement in Education Y1 - 2003 A1 - Leung, C-K.. A1 - Chang, Hua-Hua A1 - Hau, K-T. A1 - Wen. Z. JF - Paper presented at the annual meeting of the National Council on Measurement in Education CY - Chicago IL N1 - {PDF file, 227 KB} ER - TY - JOUR T1 - Computerized adaptive testing: A comparison of three content balancing methods JF - The Journal of Technology, Learning and Assessment Y1 - 2003 A1 - Leung, C-K.. A1 - Chang, Hua-Hua A1 - Hau, K-T. AB - Content balancing is often a practical consideration in the design of computerized adaptive testing (CAT). This study compared three content balancing methods, namely, the constrained CAT (CCAT), the modified constrained CAT (MCCAT), and the modified multinomial model (MMM), under various conditions of test length and target maximum exposure rate. Results of a series of simulation studies indicate that there is no systematic effect of content balancing method in measurement efficiency and pool utilization. However, among the three methods, the MMM appears to consistently over-expose fewer items. VL - 2 ER - TY - JOUR T1 - Incorporation of Content Balancing Requirements in Stratification Designs for Computerized Adaptive Testing JF - Educational and Psychological Measurement Y1 - 2003 A1 - Leung, C-K.. A1 - Chang, Hua-Hua A1 - Hau, K-T. KW - computerized adaptive testing AB - Studied three stratification designs for computerized adaptive testing in conjunction with three well-developed content balancing methods. Simulation study results show substantial differences in item overlap rate and pool utilization among different methods. Recommends an optimal combination of stratification design and content balancing method. (SLD) VL - 63 ER - TY - CONF T1 - Comparing three item selection approaches for computerized adaptive testing with content balancing requirement T2 - Paper presented at the annual meeting of the National Council on Measurement in Education Y1 - 2002 A1 - Leung, C-K.. A1 - Chang, Hua-Hua A1 - Hau, K-T. JF - Paper presented at the annual meeting of the National Council on Measurement in Education CY - New Orleans LA N1 - {PDF file, 226 KB} ER - TY - JOUR T1 - Item selection in computerized adaptive testing: Improving the a-stratified design with the Sympson-Hetter algorithm JF - Applied Psychological Measurement Y1 - 2002 A1 - Leung, C-K.. A1 - Chang, Hua-Hua A1 - Hau, K-T. VL - 26 ER - TY - CONF T1 - An examination of item selection rules by stratified CAT designs integrated with content balancing methods T2 - Paper presented at the Annual Meeting of the American Educational Research Association Y1 - 2001 A1 - Leung, C-K.. A1 - Chang, Hua-Hua A1 - Hau, K-T. JF - Paper presented at the Annual Meeting of the American Educational Research Association CY - Seattle WA N1 - {PDF file, 296 KB} ER - TY - CONF T1 - Content balancing in stratified computerized adaptive testing designs T2 - Paper presented at the annual meeting of the American Educational Research Association Y1 - 2000 A1 - Leung, C-K.. A1 - Chang, Hua-Hua A1 - Hau, K-T. JF - Paper presented at the annual meeting of the American Educational Research Association CY - New Orleans, LA N1 - {PDF file, 427 KB} ER - TY - CONF T1 - Solving complex constraints in a-stratified computerized adaptive testing designs T2 - Paper presented at the annual meeting of the National Council on Measurement in Education Y1 - 2000 A1 - Leung, C-K.. A1 - Chang, Hua-Hua A1 - Hau, K-T. JF - Paper presented at the annual meeting of the National Council on Measurement in Education CY - New Orleans, USA N1 - PDF file, 384 K ER - TY - CONF T1 - An enhanced stratified computerized adaptive testing design T2 - Paper presented at the annual meeting of the American Educational Research Association Y1 - 1999 A1 - Leung, C-K.. A1 - Chang, Hua-Hua A1 - Hau, K-T. JF - Paper presented at the annual meeting of the American Educational Research Association CY - Montreal, Canada N1 - {PDF file, 478 KB} ER - TY - CONF T1 - Item selection in computerized adaptive testing: improving the a-stratified design with the Sympson-Hetter algorithm T2 - Paper presented at the Annual Meeting of the American Educational Research Association Y1 - 1999 A1 - Leung, C-K.. A1 - Chang, Hua-Hua A1 - Hau, K-T. JF - Paper presented at the Annual Meeting of the American Educational Research Association CY - Montreal, CA ER -