Smith, R., & Lewis, C.. (1996). A search procedure to determine sets of decision points when using testlet-based Bayesian sequential testing procedures. In Paper presented at the annual meeting of National Council on Measurement in Education. New York.

Wainer, H.,, Kaplan, B., & Lewis, C.. (1991). Some empirical guidelines for building testlets (Technical Report 91-56). Princeton NJ: Educational Testing Service, Program Statistics Research.

Lewis, C. (2007). Some thoughts on controlling item exposure in adaptive testing. In . D. J. Weiss (Ed.), Proceedings of the 2007 GMAC Conference on Computerized Adaptive Testing.