Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.12/1572
Título: Construct validity of the Montreal Cognitive Assessment (MoCA)
Autor: Freitas, Sandra
Simões, Mário R.
Maroco, João
Alves, Lara
Santana, Isabel
Palavras-chave: Cognitive disorders
Alzheimer disease
Neuropsychological test
Psychometrics
Validity and reliability
Factor analysis
Data: 2012
Editora: Cambridge University Press
Citação: Journal of the International Neuropsychological Society, 18, 242-250
Resumo: The Montreal Cognitive Assessment (MoCA) is a brief instrument developed for the screening of milder forms of cognitive impairment. The present study aims to assess the construct related validity of the MoCA through the establishment of the factorial, convergent, and discriminant related validities, and the reliability of data. In a Portuguese sample of 830 participants, several models were tested using Confirmatory Factor Analysis. Although all tested models showed a good fit, the six-factor model based on the conceptual model proposed by the MoCA’s authors showed a significantly better fit. The results allowed us to establish the factorial, convergent, and discriminant validity of this six-dimensional structure. An overall psychometric adequacy of the items, and a good reliability were also found. This study contributes to overcome an important gap in the construct related validity of this instrument. The present findings corroborate the six-dimensional structure of the MoCA and provide good evidence of the construct related validity. The MoCA has proved to be an appropriate measure for cognitive screening taking into account different cognitive domains, which will enable clinicians and researchers to use this test and its six latent dimensions to achieve a better understanding of the individuals’ cognitive profile.
Peer review: yes
URI: http://hdl.handle.net/10400.12/1572
ISSN: 1355-6177
Aparece nas colecções:PSAU - Artigos em revistas internacionais

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