Factor Structure and Internal Consistency of the National Alzheimer Coordinating Center's Uniform Data Set Version 3 Neuropsychological Test Battery (UDSNB 3.0): The Nigeria Sample.

IF 1.8 4区医学 Q3 CLINICAL NEUROLOGY

Alzheimer Disease & Associated Disorders Pub Date : 2024-07-01 Epub Date: 2024-08-08 DOI:10.1097/WAD.0000000000000630

Valentine Ucheagwu, Chiamaka Odilora, Rita Ugokwe-Joseph, Bruno Giordani

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Abstract

Background: Construct validation of cognitive batteries across Africa is imperative to understanding dementia in the region. We examined construct validity and internal consistency of the neuropsychological battery of Uniform Data Set version 3 (UDSNB 3.0) of the Alzheimer Coordinating Center in Nigeria older adults.

Method: Three hundred forty-nine (220 females; age: 65 to 85) community dwellers were recruited. UDSNB 3.0 with 12 subscales were used to measure cognition. Two sets of data were collected. First was for exploratory factor analysis (EFA) and second was confirmatory factor analysis (CFA). Four models were specified for CFA.

Result: EFA principal axis factor with varimax rotation yielded 4 factors: Executive function, memory, visual-spatial ability, and processing speed. Four CFA were performed based on 4 specified models, with only model 3 showing good model fit: CMIN/DF=2.13; confirmatory fit index=0.94; root mean square error of approximation=0.07. Model 3 had 5 latent variables: working memory, language, verbal memory, visual-spatial ability, and processing speed. UDSNB 3.0 had an overall Cronbach alpha of 0.73, suggesting strong internal reliability with ANOVA model F134,1619=183.65 significant at P<0.001 level of testing.

Conclusions: Our study showed that UDSNB 3.0 has construct validity and good internal consistency in our older adult population.

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全国老年痴呆症协调中心统一数据集第三版神经心理测试库（UDSNB 3.0）的因子结构和内部一致性：尼日利亚样本。

背景：要了解非洲地区痴呆症的情况，就必须对该地区的认知测验进行构架验证。我们对尼日利亚老年人阿尔茨海默氏症协调中心统一数据集第 3 版（UDSNB 3.0）神经心理测验的结构效度和内部一致性进行了研究：招募了 349 名社区居民（220 名女性；年龄：65 至 85 岁）。UDSNB 3.0 包含 12 个分量表，用于测量认知能力。收集了两组数据。第一组用于探索性因素分析（EFA），第二组用于确认性因素分析（CFA）。在 CFA 中指定了四个模型：结果：采用变轴旋转的 EFA 主轴因子分析得出了 4 个因子：结果：采用变轴旋转的 EFA 主轴因子分析得出了 4 个因子：执行功能、记忆力、视觉空间能力和处理速度。根据 4 个指定模型进行了 4 次 CFA，只有模型 3 显示出良好的模型拟合效果：CMIN/DF=2.13；确认拟合指数=0.94；近似均方根误差=0.07。模型 3 有 5 个潜变量：工作记忆、语言、言语记忆、视觉空间能力和处理速度。UDSNB 3.0 的总体 Cronbach alpha 值为 0.73，表明其内部信度很高，方差分析模型 F134,1619=183.65 在 PConclusions 中显著：我们的研究表明，UDSNB 3.0 在老年人群中具有建构效度和良好的内部一致性。

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来源期刊

Alzheimer Disease & Associated Disorders 医学-病理学

CiteScore

3.10

自引率

4.80%

发文量

期刊介绍： Alzheimer Disease & Associated Disorders is a peer-reviewed, multidisciplinary journal directed to an audience of clinicians and researchers, with primary emphasis on Alzheimer disease and associated disorders. The journal publishes original articles emphasizing research in humans including epidemiologic studies, clinical trials and experimental studies, studies of diagnosis and biomarkers, as well as research on the health of persons with dementia and their caregivers. The scientific portion of the journal is augmented by reviews of the current literature, concepts, conjectures, and hypotheses in dementia, brief reports, and letters to the editor.