title: Methodological issues for building item banks and computerized adaptive scales.
abstract: 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.
authors.affiliation: University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. dthissen@email.unc.edu
authors.forename: David
authors.initials: D
authors.lastname: Thissen
authors.forename: Bryce B
authors.initials: BB
authors.lastname: Reeve
authors.forename: Jakob Bue
authors.initials: JB
authors.lastname: Bjorner
authors.forename: Chih-Hung
authors.initials: CH
authors.lastname: Chang
mesh_terms: D004521:Educational Measurement; D006304:Health Status; D006801:Humans; D017063:Outcome Assessment, Health Care / Q000379:methods*; D012984:Software; D011795:Surveys and Questionnaires