An exploratory analysis of item parameters and characteristics that influence item level response time. Dissertation Abstracts International Section A: Humanities and Social Sciences, 61, 1812.
. (2000). Generating abstract reasoning items with cognitive theory. In , Item generation for test development (pp. 219-250). Mahwah, N.J. USA: Lawrence Erlbaum Associates, Inc.
. (2002). Item exposure constraints for testlets in the verbal reasoning section of the MCAT. Applied Psychological Measurement, 27, 335-356.
. (2003).