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| Autore principale: | |
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| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Universidad de Antioquia
2019
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=12060716010 https://www.redalyc.org/journal/120/12060716010/ https://www.redalyc.org/journal/120/12060716010/html/ https://www.redalyc.org/journal/120/12060716010/12060716010.epub https://www.redalyc.org/journal/120/12060716010/movil |
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Sommario:
- Rasch analysis of the Katz index of independence in activities of daily living in senior citizens from Antioquia, Colombia Diego Fernando Rojas-Gualdrón Jessica María Ayala-Hernández Doris Cardona-Arango Angela María Segura-Cardona María Osley Garzón-Duque Salud Aged 80 and over Validation studies Activities of daily living Objective: To evaluate the validity of the Katz geriatric scale in senior citizens from a Rasch model perspective. Methodology: Secondary data analysis of a population-based, cross-sectional study of health status in 4,023 senior citizens conducted in Antioquia, Colombia, in 2012. Item fit, differential item functioning, unidimensionality, reliability and item-person map analyses were performed. Results: All items adjusted to the model. Transferring and Continence showed high differential item functioning with a considerable, but statistically non-significant impact on the overall estimation. Person and Item reliability were 0.80 and 0.90 respectively. The Rasch measurement explained 61.6% of variance. Conclusion: A unidimensional interval level measure can be obtained from the Katz instrument. It is important to do more research on differential functioning of Katz’s items in a way in which validity arguments on its generalization to various subpopulations could be strengthened and score interpretability could be improved. 2019 artículo científico 0120-386X https://www.redalyc.org/articulo.oa?id=12060716010 https://www.redalyc.org/journal/120/12060716010/ https://www.redalyc.org/journal/120/12060716010/html/ https://www.redalyc.org/journal/120/12060716010/12060716010.epub https://www.redalyc.org/journal/120/12060716010/movil 10.17533/udea.rfnsp.v37n2a10 en http://www.redalyc.org/revista.oa?id=120 Revista Facultad Nacional de Salud Pública application/pdf Universidad de Antioquia Revista Facultad Nacional de Salud Pública (Colombia) Num.2 Vol.37