@article {251,
	title = {Computerized adaptive testing: A comparison of three content balancing methods},
	journal = {The Journal of Technology, Learning and Assessment},
	volume = {2},
	number = {5},
	year = {2003},
	pages = {1-15},
	abstract = {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.},
	author = {Leung, C-K.. and Chang, Hua-Hua and Hau, K-T.}
}
@conference {1003,
	title = {Computerized adaptive testing: A comparison of three content balancing methods},
	booktitle = {Paper presented at the annual meeting of the National Council on Measurement in Education},
	year = {2003},
	note = {{PDF file, 227 KB}},
	address = {Chicago IL},
	author = {Leung, C-K.. and Chang, Hua-Hua and Hau, K-T. and Wen. Z.}
}
@article {250,
	title = {Incorporation of Content Balancing Requirements in Stratification Designs for Computerized Adaptive Testing},
	journal = {Educational and Psychological Measurement},
	volume = {63},
	number = {2},
	year = {2003},
	pages = {257-70},
	abstract = {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)},
	keywords = {computerized adaptive testing},
	author = {Leung, C-K.. and Chang, Hua-Hua and Hau, K-T.}
}
@conference {1002,
	title = {Comparing three item selection approaches for computerized adaptive testing with content balancing requirement},
	booktitle = {Paper presented at the annual meeting of the National Council on Measurement in Education},
	year = {2002},
	note = {{PDF file, 226 KB}},
	address = {New Orleans LA},
	author = {Leung, C-K.. and Chang, Hua-Hua and Hau, K-T.}
}
@article {612,
	title = {Item selection in computerized adaptive testing: Improving the a-stratified design with the Sympson-Hetter algorithm},
	journal = {Applied Psychological Measurement},
	volume = {26},
	year = {2002},
	pages = {376-392},
	author = {Leung, C-K.. and Chang, Hua-Hua and Hau, K-T.}
}
@conference {1259,
	title = {Optimum number of strata in the a-stratified adaptive testing design},
	booktitle = {Paper presented at the annual meeting of the American Educational Research Association},
	year = {2002},
	note = {{PDF file, 114 KB}},
	address = {New Orleans LA},
	author = {Wen, J.-B. and Chang, Hua-Hua and Hau, K-T.}
}
@conference {1000,
	title = {An examination of item selection rules by stratified CAT designs integrated with content balancing methods},
	booktitle = {Paper presented at the Annual Meeting of the American Educational Research Association},
	year = {2001},
	note = {{PDF file, 296 KB}},
	address = {Seattle WA},
	author = {Leung, C-K.. and Chang, Hua-Hua and Hau, K-T.}
}
@conference {1001,
	title = {Integrating stratification and information approaches for multiple constrained CAT},
	booktitle = {Paper presented at the Annual Meeting of the National Council on Measurement in Education},
	year = {2001},
	note = {{PDF file, 322 KB}},
	address = {Seattle WA},
	author = {Leung, C.-I. and Chang, Hua-Hua and Hau, K-T.}
}
@conference {998,
	title = {Content balancing in stratified computerized adaptive testing designs},
	booktitle = {Paper presented at the annual meeting of the American Educational Research Association},
	year = {2000},
	note = {{PDF file, 427 KB}},
	address = {New Orleans, LA},
	author = {Leung, C-K.. and Chang, Hua-Hua and Hau, K-T.}
}
@conference {999,
	title = {Solving complex constraints in a-stratified computerized adaptive testing designs},
	booktitle = {Paper presented at the annual meeting of the National Council on Measurement in Education},
	year = {2000},
	note = {PDF file, 384 K},
	address = {New Orleans, USA},
	author = {Leung, C-K.. and Chang, Hua-Hua and Hau, K-T.}
}
@conference {996,
	title = {An enhanced stratified computerized adaptive testing design},
	booktitle = {Paper presented at the annual meeting of the American Educational Research Association},
	year = {1999},
	note = {{PDF file, 478 KB}},
	address = {Montreal, Canada},
	author = {Leung, C-K.. and Chang, Hua-Hua and Hau, K-T.}
}
@conference {997,
	title = {Item selection in computerized adaptive testing: improving the a-stratified design with the Sympson-Hetter algorithm},
	booktitle = {Paper presented at the Annual Meeting of the American Educational Research Association},
	year = {1999},
	address = {Montreal, CA},
	author = {Leung, C-K.. and Chang, Hua-Hua and Hau, K-T.}
}
