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Overview of quantitative measurement methods. Equivalence, invariance, and differential item functioning in health applications. Medical Care, 44, S39-49. presented at the Nov.. (2006).
Calibration of an item pool for assessing the burden of headaches: an application of item response theory to the Headache Impact Test (HIT). Quality of Life Research, 12, 913-933.. (2003).
Evaluating the usefulness of computerized adaptive testing for medical in-course assessment. Academic Medicine, 74, 1125-8. presented at the Oct.. (1999).
Health status assessment for the twenty-first century: item response theory, item banking and computer adaptive testing. Quality of Life Research, 6, 595-600. presented at the Aug.. (1997).