01115nas a2200145   4500008004100000245008300041210006900124300000900193490000600202520060700208100001500815700001900830700001300849856010700862       2003                        eng d00aComputerized adaptive testing: A comparison of three content balancing methods0 aComputerized adaptive testing A comparison of three content bala  a1-150 v23 aContent 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.1 aLeung, C-K1 aChang, Hua-Hua1 aHau, K-T  uhttp://mail.iacat.org/content/computerized-adaptive-testing-comparison-three-content-balancing-methods