Development of a word accentuation test for predicting cognitive performance in Portuguese-speaking populations.
Arq Neuropsiquiatr
; 77(8): 560-567, 2019 09 05.
Article
en En
| MEDLINE
| ID: mdl-31508682
ABSTRACT
The Word Accentuation Test (WAT) has been used to predict premorbid intelligence and cognitive performance in Spanish-speaking populations. It requires participants to read a list of words without the accent marks that indicate the stressed syllable. Label="OBJECTIVE">As Portuguese pronunciation is also strongly based on accent marks, our aim was to develop a Brazilian version of the WAT. METHODS An initial pool of 60 items was constructed and a final version of 40 items (named WAT-Br) was derived by item response theory. A sample of 206 older adults underwent the WAT-Br and a standardized neuropsychological battery. Independent ratings were performed by two observers in 58 random participants. RESULTS The items showed moderate to high discrimination (α between 0.93 and 25.04) and spanned a wide range of difficulty (ß between -2.07 and 1.40). The WAT-Br was shown to have an excellent internal consistency (Kuder-Richardson Formula 20 = 0.95) and inter-rater reliability (intraclass correlation coefficient = 0.92). It accounted for 61% of the variance in global cognitive performance. CONCLUSION A version of the WAT for Portuguese-speaking populations was developed and proved to be a valuable tool for estimating cognitive performance.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Cognición
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Lenguaje
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Pruebas del Lenguaje
Tipo de estudio:
Prognostic_studies
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Risk_factors_studies
Límite:
Aged
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Aged80
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Female
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Humans
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Male
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Middle aged
País como asunto:
America do sul
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Brasil
Idioma:
En
Año:
2019
Tipo del documento:
Article