Better assessment of physical function: item improvement is neglected but essential

INTRODUCTION: Physical function is a key component of patient-reported outcome (PRO) assessment in rheumatology. Modern psychometric methods, such as Item Response Theory (IRT) and Computerized Adaptive Testing, can materially improve measurement precision at the item level. We present the qualitati...

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Bibliographic Details
Main Authors: Bruce, Bonnie, Fries, James F, Ambrosini, Debbie, Lingala, Bharathi, Gandek, Barbara, Rose, Matthias, Ware, John E
Format: Artigo
Language:Inglês
Published: BioMed Central 2009
Subjects:
Research Article
Online Access:https://ncbi.nlm.nih.gov/pmc/articles/PMC3003539/
https://ncbi.nlm.nih.gov/pubmed/20015354
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1186/ar2890
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