TitleOptimal Calibration Designs for Computerized Adaptive Testing
Publication TypeConference Paper
Year of Publication2011
AuthorsVerschoor, A
Conference NameAnnual Conference of the International Association for Computerized Adaptive Testing
Date Published10/2011
Keywordsbalanced block design, CAT, item calibration, optimization, Rasch


How can we exploit the advantages of Balanced Block Design while keeping the logistics manageable?

  • Maximize number of item pairs
  • Subject to maximum number of test booklets
  • Subject to other constraints

Homogeneous Designs: Overlap between test booklets as regular as possible


  • Establish overlaps as regular as possible between all test booklets
  • Or, at least as many test booklets as possible