Calibration of an Item Pool for Assessing the Burden of Headaches: An Application of Item Response Theory to the Headache Impact Test (HIT™)

Calibration of an Item Pool for Assessing the Burden of Headaches: An Application of Item Response Theory to the Headache Impact Test (HIT™)

Background: Measurement of headache impact is important in clinical trials, case detection, and the clinical monitoring of patients. Computerized adaptive testing (CAT) of headache impact has potential advantages over traditional fixed-length tests in terms of precision, relevance, real-time quality...

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Veröffentlicht in:Quality of Life Research. - Springer Science + Business Media. - 12(2003), 8, Seite 913-933
1. Verfasser: Bjorner, Jakob B. (VerfasserIn)
Weitere Verfasser: Kosinski, Mark, Ware,, John E.
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2003
Zugriff auf das übergeordnete Werk:Quality of Life Research
Schlagworte:Computerized adaptive testing Disability Headache Health status Impact Item response theory Migraine Quality of life Questionnaires Severity mehr... Tension headache Health sciences Applied sciences Education Mathematics Behavioral sciences
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100 1 |a Bjorner, Jakob B.  |e verfasserin  |4 aut 
245 1 0 |a Calibration of an Item Pool for Assessing the Burden of Headaches: An Application of Item Response Theory to the Headache Impact Test (HIT™) 
264 1 |c 2003 
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520 |a Background: Measurement of headache impact is important in clinical trials, case detection, and the clinical monitoring of patients. Computerized adaptive testing (CAT) of headache impact has potential advantages over traditional fixed-length tests in terms of precision, relevance, real-time quality control and flexibility. Objective: To develop an item pool that can be used for a computerized adaptive test of headache impact. Methods: We analyzed responses to four well-known tests of headache impact from a population-based sample of recent headache sufferers (n = 1016). We used confirmatory factor analysis for categorical data and analyses based on item response theory (IRT). Results: In factor analyses, we found very high correlations between the factors hypothesized by the original test constructers, both within and between the original questionnaires. These results suggest that a single score of headache impact is sufficient. We established a pool of 47 items which fitted the generalized partial credit IRT model. By simulating a computerized adaptive health test we showed that an adaptive test of only five items had a very high concordance with the score based on all items and that different worst-case item selection scenarios did not lead to bias. Conclusion: We have established a headache impact item pool that can be used in CAT of headache impact. 
540 |a Copyright 2003 Kluwer Academic Publishers 
650 4 |a Computerized adaptive testing 
650 4 |a Disability 
650 4 |a Headache 
650 4 |a Health status 
650 4 |a Impact 
650 4 |a Item response theory 
650 4 |a Migraine 
650 4 |a Quality of life 
650 4 |a Questionnaires 
650 4 |a Severity 
650 4 |a Tension headache 
650 4 |a Health sciences  |x Medical conditions  |x Symptoms  |x Pain  |x Headache 
650 4 |a Health sciences  |x Medical conditions  |x Symptoms  |x Pain  |x Headache  |x Migraine 
650 4 |a Applied sciences  |x Research methods  |x Survey research  |x Survey methods  |x Questionnaires 
650 4 |a Health sciences  |x Medical conditions  |x Disabilities 
650 4 |a Education  |x Formal education  |x Pedagogy  |x Educational methods  |x Educational testing  |x Test theory  |x Item response theory 
650 4 |a Mathematics  |x Applied mathematics  |x Statistics  |x Applied statistics  |x Descriptive statistics  |x Measures of variability  |x Multivariate statistical analysis  |x Factor analysis 
650 4 |a Applied sciences  |x Research methods  |x Modeling 
650 4 |a Behavioral sciences  |x Psychology  |x Cognitive psychology  |x Memory  |x Memory recall 
650 4 |a Mathematics  |x Pure mathematics  |x Linear algebra  |x Matrix theory  |x Eigenvalues 
650 4 |a Health sciences  |x Health and wellness  |x Health status  |x Quality of life  |x The Practical Assessment of Headache Impact Using Item Response Theory and Computerized Adaptive Testing 
655 4 |a research-article 
700 1 |a Kosinski, Mark  |e verfasserin  |4 aut 
700 1 |a Ware,, John E.  |e verfasserin  |4 aut 
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