Jakobsson Ulf
Department of Health Sciences, Faculty of Medicine, Lund University, Lund, Sweden.
Int J Rehabil Res. 2008 Mar;31(1):85-8. doi: 10.1097/MRR.0b013e3282f45166.
The aim was to psychometrically evaluate the activities of daily living (ADL)-staircase in various age groups. This age stratified, cross-sectional study comprised 826 individuals aged 18-102 years. The factor structure was assessed by means of hierarchical cluster analyses, plots and analyses of nonclassifiable responses. Reliability was assessed in terms of internal consistency. In general, the cluster analysis revealed two main clusters, which followed the intended factor structure (i.e. grouping the items according to personal ADL and instrumental ADL) and which were found in four of the six age groups (18-29, 30-44, 45-59 and 75-89 years). Plots confirmed that, in general, the instrument followed the hierarchical structure. Acceptable Cronbach's alpha was found in the total sample, the 18-29 age group and those aged 60 years and older. The ADL-staircase showed a varying degree of acceptable construct validity and reliability. The instrument, however, seems to be more suitable for older people.
目的是从心理测量学角度评估不同年龄组的日常生活活动（ADL）阶梯量表。这项年龄分层的横断面研究纳入了826名年龄在18至102岁之间的个体。通过分层聚类分析、非可分类反应的图表和分析来评估因子结构。根据内部一致性评估信度。总体而言，聚类分析揭示了两个主要聚类，其遵循预期的因子结构（即根据个人ADL和工具性ADL对项目进行分组），并且在六个年龄组中的四个年龄组（18至29岁、30至44岁、45至59岁和75至89岁）中发现。图表证实，总体而言，该量表遵循层次结构。在总样本、18至29岁年龄组以及60岁及以上人群中发现了可接受的克朗巴哈系数。ADL阶梯量表显示出不同程度的可接受的结构效度和信度。然而，该量表似乎更适合老年人。
