Using item response theory to calibrate the Headache Impact Test (HIT™) to the metric of traditional headache scales
Quality of Life ResearchPublished 3 November 2003
Jakob Bue Bjørner, Mark Kosinski, John E. Ware
Citations93
SJR quartileQ1
SJR score1.44
SNIP1.64
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TL;DR
The theoretical advantage of IRT models in scale calibration in discriminating among groups differing in migraine diagnosis, headache severity, and change in impact over time was supported by the results.
Abstract
The theoretical advantage of IRT models in scale calibration is supported by our results. This approach to achieving comparability of new and widely-used scales and accelerating the accumulation of interpretation guidelines based on previous work warrant testing for measures of other generic and disease-specific concepts.
Keywords
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