School of Physical Education and Sports, University of Costa Rica, San José, Costa Rica.
Rehabilitation Sciences, The University of British Columbia, Vancouver, BC, Canada.
Aging Clin Exp Res. 2023 Dec;35(12):3157-3165. doi: 10.1007/s40520-023-02612-7. Epub 2023 Nov 21.
Valid and reliable measurements are necessary to understand and monitor age-related changes.
To describe the factor structure and provide validity evidence of a neuropsychological and a physical testing batteries using factor analysis.
We performed a secondary analysis of data from the Epidemiology and Development of Alzheimer's Disease (EDAD) project. Community-dwelling adults aged 55 to 85 years underwent comprehensive physical and neuropsychological assessments. An exploratory factor analysis was performed on both assessment batteries. The models were later confirmed with a random subsample using confirmatory factor analysis.
Data from 238 adults (163 females and 75 males) was included. The neuropsychological model revealed a four-factor structure formed by "Executive Functioning", "Verbal Memory", "Logical Memory", and "Labeling And Reading" (Extraction Sums of Squared Loadings [ESSL] = 56.41% explained variance; Standardized Root Mean Square Residual [SRMSR] = 0.06; Comparative Fit Index [CFI] = 0.98). The physical model was formed by a two-factor structure including "Health-related Fitness and "Functional Fitness" (ESSL = 50.54% explained variance; SRMSR = 0.07; CFI = 0.93).
To our knowledge, this is the first study to analyze the structure of comprehensive testing batteries for the Latin-American older adults. Our analysis contributes to the understanding of theoretical constructs that are evaluated in the EDAD project.
Our findings provide validity evidence for simplified and reduced testing batteries, which imply shorter testing times and fewer resources.
为了理解和监测与年龄相关的变化，需要进行有效且可靠的测量。
使用因子分析描述神经心理学和身体测试组合的因子结构，并提供其有效性证据。
我们对来自阿尔茨海默病流行病学和发展（EDAD）项目的数据进行了二次分析。年龄在 55 至 85 岁之间的社区居住成年人接受了全面的身体和神经心理学评估。对这两个评估组合进行了探索性因子分析。然后使用验证性因子分析对随机子样本进行模型验证。
共有 238 名成年人（163 名女性和 75 名男性）的数据被纳入研究。神经心理学模型显示出由“执行功能”、“言语记忆”、“逻辑记忆”和“标记和阅读”组成的四因子结构（提取平方和的加载量[ESSL]为 56.41%；标准化根均方残差[SRMSR]为 0.06；拟合优度指数[CFI]为 0.98）。身体模型由“健康相关体能”和“功能体能”组成的两因子结构构成（ESSL 解释了 50.54%的方差；SRMSR 为 0.07；CFI 为 0.93）。
据我们所知，这是第一项分析拉丁美洲老年人综合测试组合结构的研究。我们的分析有助于理解 EDAD 项目中评估的理论结构。
我们的研究结果为简化和简化的测试组合提供了有效性证据，这意味着测试时间更短，所需资源更少。
