Re-evaluating a vision-related quality of life questionnaire with item response theory (IRT) and differential item functioning (DIF) analyses

BACKGROUND: For the Low Vision Quality Of Life questionnaire (LVQOL) it is unknown whether the psychometric properties are satisfactory when an item response theory (IRT) perspective is considered. This study evaluates some essential psychometric properties of the LVQOL questionnaire in an IRT model...

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Detalles Bibliográficos
Autores principales: van Nispen, Ruth MA, Knol, Dirk L, Langelaan, Maaike, van Rens, Ger HMB
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2011
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3201037/
https://www.ncbi.nlm.nih.gov/pubmed/21888648
http://dx.doi.org/10.1186/1471-2288-11-125

Internet

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3201037/
https://www.ncbi.nlm.nih.gov/pubmed/21888648
http://dx.doi.org/10.1186/1471-2288-11-125

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