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International application of PROMIS® computerized adaptive tests: US versus country-specific item parameters can be consequential for individual patient scores
2021
Journal of Clinical Epidemiology
PROMIS® offers computerized adaptive tests (CAT) of patient-reported outcomes, using a single set of US-based IRT item parameters across populations and language-versions. The use of country-specific item parameters has local appeal, but also disadvantages. We illustrate the effects of choosing US or country-specific item parameters on PROMIS CAT T-scores. Simulations were performed on response data from Dutch chronic pain patients (n=1110) who completed the PROMIS Pain Behavior item bank. We
doi:10.1016/j.jclinepi.2021.01.011
pmid:33524487
fatcat:o7yf635yhvaj3ebch6d7h5pud4