Gulick E E
Nurs Res. 1987 Sep-Oct;36(5):278-83.
Data from a 52-item self-administered Activities of Daily Living (ADL) Self-Care Scale designed for persons diagnosed with multiple sclerosis (MS) were refactored for the purpose of achieving scale parsimony and clarifying interrelationships among ADL self-care behaviors. Analyses were based on 629 MS subjects. Principal component analysis and Varimax rotated factor analysis were used to achieve scale parsimony. The resultant 15-item scale was subjected to confirmatory factor analysis to determine relationships among factors, observed variables, and residual variances within the factor model. Modification of the initial factor model due to a less than satisfactory goodness-of-fit index (GFI) (0.848) resulted in the inclusion of four additional relationships between observed variables and a second factor and six paired relations among the residual variances. The modified factor model had a satisfactory GFI of 0.95. These findings support the development of a 15-item self-administered ADL Self-Care Scale. The scale can be used to screen ADL functional levels in MS persons or to monitor changes in their ADL over time.
为被诊断患有多发性硬化症（MS）的患者设计的一份包含52个条目的自评日常生活活动（ADL）自理量表的数据，经重构以实现量表的简洁性，并阐明ADL自理行为之间的相互关系。分析基于629名MS受试者。采用主成分分析和方差最大化旋转因子分析来实现量表的简洁性。所得的15个条目量表进行了验证性因子分析，以确定因子模型中各因子、观测变量和残差方差之间的关系。由于拟合优度指数（GFI）（0.848）不尽人意，对初始因子模型进行修改，结果在观测变量与第二个因子之间纳入了另外四个关系，以及残差方差之间的六对关系。修改后的因子模型的GFI为0.95，令人满意。这些发现支持了一份15个条目自评ADL自理量表的开发。该量表可用于筛查MS患者的ADL功能水平，或监测其ADL随时间的变化。
