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Article
Publication date: 28 November 2020

Johann Chevalère, Virginie Laurier, Maite Tauber, Anna-Malika Camblats, Denise Thuilleaux and Virginie Postal

When a comprehensive neuropsychological assessment cannot be carried out, a quick and discriminant tool of good psychometric properties can be useful to practitioners. The purpose…

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Abstract

Purpose

When a comprehensive neuropsychological assessment cannot be carried out, a quick and discriminant tool of good psychometric properties can be useful to practitioners. The purpose of this paper is to examine the use of the Montreal Cognitive Assessment (MoCA) in patients with Prader–Willi syndrome (PWS) and to test its reliability for cognitive assessment in a population with intellectual disabilities.

Design/methodology/approach

Thirty-seven adults with PWS took the MoCA. Reliability of the battery was tested using Cronbach’s alphas. The performance of PWS adults in each subtest was then compared to that of a normative population of healthy adults.

Findings

The MoCA was found to be unreliable in PWS. The subtests analyses indicated that the PWS sample underperformed the normative population of healthy adults on most subtests of the MoCA. A sub-sample aged between 17and 29 years showed normal performance on Naming and Memory, and a sub-sample aged from 30 to 39 years showed similar performance on Language, Memory and Orientation relative to age-matched normative healthy adults.

Research limitations/implications

Results showed that the current version of the MoCA, if taken as a whole test for cognitive assessment, does not present with adequate psychometric properties, which the authors interpret as reflecting the heterogeneity in PWS cognitive profiles. If used in PWS, the MoCA may however be useful in examining cognitive functions separately using subtest-based comparisons to normative data.

Originality/value

This research contributes to a better assessment of cognitive profile in PWS and people with learning disabilities by arguing that the use of psychometric tests should depend more on the specificity of the population under evaluation.

Details

Advances in Mental Health and Intellectual Disabilities, vol. 14 no. 6
Type: Research Article
ISSN: 2044-1282

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Publication date: 6 July 2012

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Climate Change Modeling For Local Adaptation In The Hindu Kush-Himalayan Region
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ISBN: 978-1-78052-487-0

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Publication date: 25 October 2021

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ISBN: 978-1-80117-788-7

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