The utility of the Montreal Cognitive Assessment as a mental capacity assessment tool for patients with a learning disability
The utility of the Montreal Cognitive Assessment as a mental capacity assessment tool for patients with a learning disability
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DOI：
10.1111/bld.12157
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发表时间：
2016-09-01
影响因子：
1.5
通讯作者：
Evans, Amber
中科院分区：
文献类型：
--
作者：
Edge, Daniel;Oyefeso, Adenekan;Evans, Amber
目的：探讨蒙特利尔认知评估（MoCA）在学习障碍患者中的心理测量特征，并探讨其在心理能力评估中的应用价值。方法：本研究是一项横断面，仪器验证研究在住院医院设置，位于英格兰东部。样本由两组组成：(i) 31名连续入院的住院患者和（ii） 10名多学科团队成员作为对照组。本研究采用MoCA、12项轻度认知障碍筛查和执行障碍问卷（DEX）。项目分析是通过比较所有有学习障碍的参与者在MoCA上对每个项目的难度和歧视指数的项目认可来进行的。我们检查了源自项目分析的修订量表的内部一致性，并通过比较两个患者亚组和对照组之间的得分，使用单向方差分析来确定并发效度。结果：经项目分析得出MoCA-LD'量表，共7项，α系数为0.82。MoCA-LD与DEX呈显著负相关(Pearson相关=-0.66，P
Objective: To determine the psychometric properties of the Montreal Cognitive Assessment (MoCA) in patients with a learning disability and examine it's utility for conducting mental capacity assessment. Method: This study was a cross-sectional, instrument validation study in an inpatient hospital setting, located in the East of England. The sample consisted of two groups: (i) 31 consecutively admitted hospital patients and (ii) 10 multidisciplinary team members who served as a comparison group. The MoCA, a 12-item screen for mild cognitive impairment and the Dysexecutive Questionnaire (DEX), were used in this study. Item analysis was conducted by comparing item endorsement for all participants that had a learning disability utilising Difficulty and Discrimination Indices for each item on the MoCA. We examined the internal consistency of a revised scale derived from item analysis and used a one-way ANOVA to determine concurrent validity by comparing scores between two patient subgroups and the comparison group. Results: A 7-item scale, MoCA-LD' (alpha coefficient=0.82) emerged from item analysis. A statistically significant negative correlation was observed between MoCA-LD and DEX (Pearson correlation=-0.66, P