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An Abbreviated Montreal Cognitive Assessment (MoCA) for Dementia Screening.
- Source :
-
Clinical Neuropsychologist . May2015, Vol. 29 Issue 4, p413-425. 13p. - Publication Year :
- 2015
-
Abstract
- Objective: The Montreal Cognitive Assessment (MoCA) is a cognitive screening instrument growing in popularity, but few studies have conducted psychometric item analyses or attempted to develop abbreviated forms. We sought to derive and validate a short-form MoCA (SF-MoCA) and compare its classification accuracy to the standard MoCA and Mini-Mental State Examination (MMSE) in mild cognitive impairment (MCI), Alzheimer disease (AD), and normal aging.Methods: 408 subjects (MCIn = 169, ADn = 87, and normaln = 152) were randomly divided into derivation and validation samples. Item analysis in the derivation sample identified most sensitive MoCA items. Receiver Operating Characteristic (ROC) analyses were used to develop cut-off scores and evaluate the classification accuracy of the SF-MoCA, standard MoCA, and MMSE. Net Reclassification Improvement (NRI) analyses and comparison of ROC curves were used to compare classification accuracy of the three measures.Results: Serial subtraction (Cramer’sV = .408), delayed recall (Cramer’sV = .702), and orientation items (Cramer’sV = .832) were included in the SF-MoCA based on largest effect sizes in item analyses. Results revealed 72.6% classification accuracy of the SF-MoCA, compared with 71.9% for the standard MoCA and 67.4% for the MMSE. Results of NRI analyses and ROC curve comparisons revealed that classification accuracy of the SF-MoCA was comparable to the standard version and generally superior to the MMSE.Conclusions: Findings suggest the SF-MoCA could be an effective brief tool in detecting cognitive impairment. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 13854046
- Volume :
- 29
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Clinical Neuropsychologist
- Publication Type :
- Academic Journal
- Accession number :
- 108329898
- Full Text :
- https://doi.org/10.1080/13854046.2015.1043349