Methodological issues for building item banks and computerized adaptive scales

David Thissen, Bryce B. Reeve, Jakob Bue Bjorner, Chih Hung Chang

Research output: Contribution to journalArticlepeer-review

63 Scopus citations


This paper reviews important methodological considerations for developing item banks and computerized adaptive scales (commonly called computerized adaptive tests in the educational measurement literature, yielding the acronym CAT), including issues of the reference population, dimensionality, dichotomous versus polytomous response scales, differential item functioning (DIF) and conditional scoring, mode effects, the impact of local dependence, and innovative approaches to assessment using CATs in health outcomes research.

Original languageEnglish
Pages (from-to)109-119
Number of pages11
JournalQuality of Life Research
Issue numberSUPPL. 1
StatePublished - Aug 2007


  • Computerized adaptive scale
  • Computerized adaptive test
  • Differential item functioning
  • Dimensionality assessment
  • Item bank
  • Item response theory
  • Local dependence


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