Comparative Responsiveness of the PROMIS Pain Interference Short Forms with Legacy Pain Measures: Results from Three Randomized Clinical Trials

The National Institutes of Health-funded Patient-Reported Outcomes Measurement Information System (PROMIS®) provides researchers and clinicians with outcome measures that are reliable, valid, and publicly accessible.1,3 In contrast to legacy measures, PROMIS® emerged from state-of-art psychometric methodologies including item response theory.3 Item response theory supports computerized adaptive testing and development of fixed-length short forms containing the most informative items.1

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