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| Formato: | Artículo científico |
| Lenguaje: | en |
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Associação Neurologia Cognitiva e do Comportamento
2010
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| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=339529018010 |
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- Criterion validity of a Wechsler-III scale short form in a sample of Brazilian Elderly Eliane Ferreira Carvalho Banhato Isabel Cristina Gonçalves Leite Danielle Viveiros Guedes Alfredo Chaoubah Medicina aged short forms cognitive impairment Wechsler Intelligence Adult Scale Although a normative process, changes in cognitive functioning vary among older adults. The differential diagnosis between normal and pathological aging must be made early using psychometrically adequate measures. Objectives: To assess the evidence of criterion validity of a Short Form (SF) of the Wechsler-III Scale containing eight subtests (SF8) by determining its sensitivity, specificity, positive and negative predictive values and cut-off points for Brazilian elderly from different age groups. Methods: 168 individuals, aged 60 years or above, living in the community or in an institution, were assigned to case and control groups, and investigated according to age range. Measures included a sociodemographic questionnaire, the Mini-Mental State Examination (MMSE), Verbal Fluency Test, Clock-Drawing Test and the SF8. Results: More than two thirds of the sample was women (73.8%), mean age was 74.5 years (SD=8.9), mean education was 6.2 years (SD=4.8) and 40.5% were widows/widowers. In the total sample, the best cut-off point for the SF8 was 142 while cut offs among individuals aged 60 to 69 years, 70 to 79 years, and more than 80 years were 160, 129 and 129, respectively. Conclusions: The results demonstrated the importance of different cut-off points for different age ranges. Sensitivity and specificity values of the SF8 were sufficiently high to warrant the use of the SF8 as an instrument to identify cognitive impairment in the elderly. 2010 artículo científico 1980-5764 https://www.redalyc.org/articulo.oa?id=339529018010 en http://www.redalyc.org/revista.oa?id=3395 Dementia & Neuropsychologia application/pdf Associação Neurologia Cognitiva e do Comportamento Dementia & Neuropsychologia (Brasil) Num.3 Vol.4