Improved responsiveness and reduced sample size requirements of PROMIS physical function scales with item response theory

INTRODUCTION: The Health Assessment Questionnaire Disability Index (HAQ) and the SF-36 PF-10, among other instruments, yield sensitive and valid Disability (Physical Function) endpoints. Modern techniques, such as Item Response Theory (IRT), now enable development of more precise instruments using i...

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Autores principales: Fries, James F, Krishnan, Eswar, Rose, Matthias, Lingala, Bharathi, Bruce, Bonnie
Formato: Artigo
Lenguaje:Inglês
Publicado: BioMed Central 2011
Materias:
Research Article
Acceso en línea:https://ncbi.nlm.nih.gov/pmc/articles/PMC3308075/
https://ncbi.nlm.nih.gov/pubmed/21914216
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1186/ar3461
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