Computerized Adaptive Testing with the Zinnes and Griggs Pairwise Preference Ideal Point Model. International Journal of Testing, 11, 231-247. doi:10.1080/15305058.2011.561459
. (2011). Multistage Testing: Widely or Narrowly Applicable?. Applied Measurement in Education, 19, 257-260. doi:10.1207/s15324818ame1903_6
. (2006).