Lau, C. A., & Wang, T.. (1999). Computerized classification testing under practical constraints with a polytomous model. annual meeting of the American Educational Research Association. presented at the 04/1999, Montreal, Quebec, Canada.

Lau, C. A., & Wang, T.. (1998). Comparing and combining dichotomous and polytomous items with SPRT procedure in computerized classification testing. In Paper presented at the annual meeting of the American Educational Research Association. San Diego.