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Análisis Rasch del WHOQOL-BREF en adultos mayores de Bucaramanga y Manizales

  • Diego Fernando Rojas-Gualdrón [2] ; Patricia Díaz Gordon [1] ; Diana Patricia Jaramillo Ortegón ; Martha Eugenia Ortega Ortiz [1] ; Julialba Castellanos Ruiz ; Andrea del Pilar González Marín
    1. [1] Universidad Autónoma de Bucaramanga

      Universidad Autónoma de Bucaramanga

      Colombia

    2. [2] Universidad CES, Medellin, Antioquia
  • Localización: Psicología desde el Caribe: revista del Programa de Psicología de la Universidad del Norte, ISSN 0123-417X, Vol. 35, Nº. 3, 2018, págs. 183-196
  • Idioma: español
  • Títulos paralelos:
    • Rasch analysis of the WHOQOL-BREF in older adults from Bucaramanga and Manizales
  • Enlaces
  • Resumen
    • español

      El objetivo de este estudio es valuar las evidencias de validez de una aproximación unidimensional al WHOQOL-BREF en adultos mayores. Se aplicó el instrumento a una muestra probabilística de 510 adultos mayores de Bucaramanga y Manizales adscritos a centros día o centros vida. Se realizaron análisis Rasch de ajuste de categorías de respuesta, ajuste de los ítems y de las personas, funcionamiento diferencial de los ítems, unidimensionalidad y confiabilidad. Fue necesario colapsar las categorías de respuesta de cinco a cuatro opciones.

      Todos los ítems se ajustaron de forma adecuada al modelo de Rasch, al igual que una alta proporción de adultos mayores. Se identificó funcionamiento diferencial tipo C en cinco ítems, aunque se pudo establecer que este tiene un bajo impacto en la medida. La consistencia interna fue de 0,92, y la confiabilidad de los ítems de 0,98. Se presenta el mapa de Wright. A partir del WHOQOL-BREF se puede obtener una medida unidimensional a nivel de intervalo de calidad de vida en adultos mayores

    • English

      This research aimed to evaluate the validity evidences of a unidimensional approach to WHOQOL-BEF in older adults. The instrument was applied to a probabilistic sample of 510 older adults from Bucaramanga and Manizales beneficiaries of day care institutions. Rasch analyses of category function, item and person fit, differential item functioning, unidimensionality and reliability analyses were performed. The category structure had to be collapsed from five to four choices. All items and a high proportion of older adults showed adequate adjustment to the Rasch model. Differential item functioning was identified in five items, although their impact on overall measure was low. Internal consistency was 0.92 and item reliability 0.98. Wright’s map is presented. A unidimensional, interval-scale measure of quality of life can be obtained from the WHOQOL-BREF for older adults

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