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Criterion validity of a Wechsler-III Scale Short Form in a sample of brazilian elderly

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 W...

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Autores principales: Banhato, Eliane Ferreira Carvalho, Leite, Isabel Cristina Gonçalves, Guedes, Danielle Viveiros, Chaoubah, Alfredo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Associação de Neurologia Cognitiva e do Comportamento 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5619291/
https://www.ncbi.nlm.nih.gov/pubmed/29213688
http://dx.doi.org/10.1590/S1980-57642010DN40300009
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author Banhato, Eliane Ferreira Carvalho
Leite, Isabel Cristina Gonçalves
Guedes, Danielle Viveiros
Chaoubah, Alfredo
author_facet Banhato, Eliane Ferreira Carvalho
Leite, Isabel Cristina Gonçalves
Guedes, Danielle Viveiros
Chaoubah, Alfredo
author_sort Banhato, Eliane Ferreira Carvalho
collection PubMed
description 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.
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spelling pubmed-56192912017-12-06 Criterion validity of a Wechsler-III Scale Short Form in a sample of brazilian elderly Banhato, Eliane Ferreira Carvalho Leite, Isabel Cristina Gonçalves Guedes, Danielle Viveiros Chaoubah, Alfredo Dement Neuropsychol Original Articles 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. Associação de Neurologia Cognitiva e do Comportamento 2010 /pmc/articles/PMC5619291/ /pubmed/29213688 http://dx.doi.org/10.1590/S1980-57642010DN40300009 Text en http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Articles
Banhato, Eliane Ferreira Carvalho
Leite, Isabel Cristina Gonçalves
Guedes, Danielle Viveiros
Chaoubah, Alfredo
Criterion validity of a Wechsler-III Scale Short Form in a sample of brazilian elderly
title Criterion validity of a Wechsler-III Scale Short Form in a sample of brazilian elderly
title_full Criterion validity of a Wechsler-III Scale Short Form in a sample of brazilian elderly
title_fullStr Criterion validity of a Wechsler-III Scale Short Form in a sample of brazilian elderly
title_full_unstemmed Criterion validity of a Wechsler-III Scale Short Form in a sample of brazilian elderly
title_short Criterion validity of a Wechsler-III Scale Short Form in a sample of brazilian elderly
title_sort criterion validity of a wechsler-iii scale short form in a sample of brazilian elderly
topic Original Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5619291/
https://www.ncbi.nlm.nih.gov/pubmed/29213688
http://dx.doi.org/10.1590/S1980-57642010DN40300009
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