Zenisky, A. L., & Hambleton, R. K..  (2004).  Investigating the effects of selected multi-stage test design alternatives on credentialing outcomes. In Paper presented at the annual meeting of the National Council on Measurement in Education. San Diego CA.

Hambleton, R. K., Jodoin, M., & Zenisky, A. L..  (2002).  Impact of selected factors on the psychometric quality of credentialing examinations administered with a sequential testlet design. In Paper presented at the annual meeting of the National Council on Measurement in Education. New Orleans LA.