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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...
Autores principales: | Fries, James F, Krishnan, Eswar, Rose, Matthias, Lingala, Bharathi, Bruce, Bonnie |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3308075/ https://www.ncbi.nlm.nih.gov/pubmed/21914216 http://dx.doi.org/10.1186/ar3461 |
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