Kintner Eileen K, Sikorskii Alla
Michigan State University College of Nursing, East Lansing, MI, USA.
Health Qual Life Outcomes. 2008 Jun 4;6:43. doi: 10.1186/1477-7525-6-43.
The purpose of this study was to evaluate the reliability and construct validity of the Participation in Life Activities Scale, an instrument designed to measure older school-age child and early adolescent level of involvement in chosen pursuits.
A cross-sectional design was used. The convenience sample consisted of 313 school-age children and early adolescents with asthma, ages 9-15 years. The self-report summative scale of interest is a 3-indicator survey. Higher scores are reflective of higher levels of participation. Internal consistency reliability and construct validity for the entire sample and sub groups of the sample were evaluated.
The instrument was deemed sound for the entire sample as well as sub groups based on sex, race, age, socioeconomic status, and severity of illness. Cronbach's alpha coefficient for internal consistency reliability for the entire sample was .74. Exploratory factor analysis indicated a single component solution (loadings .79-.85) accounting for 66% of the explained variance. Construct validity was established by testing the posed relationship between participation in life activities scores and severity of illness. Confirmatory factor analysis revealed a good fit between the data and specified model, chi2(10, n = 302) = 8.074, p = .62.
This instrument could be used (a) in clinical settings to diagnose restricted participation in desired activities, guide decision-making about treatment plans to increase participation, and motivate behavioral change in the management of asthma; and (b) in research settings to explore factors influencing and consequences of restricted and unrestricted participation, and as an outcome measure to evaluate the effectiveness of programs designed to foster child and early adolescent management of asthma.
本研究旨在评估“生活活动参与量表”的信度和结构效度，该量表旨在测量大龄学龄儿童和青少年早期参与所选活动的程度。
采用横断面设计。便利样本包括313名9至15岁患有哮喘的学龄儿童和青少年早期。感兴趣的自评汇总量表是一项包含3项指标的调查。分数越高表明参与程度越高。对整个样本及其子组的内部一致性信度和结构效度进行了评估。
基于性别、种族、年龄、社会经济地位和疾病严重程度，该量表对整个样本及其子组而言都是可靠的。整个样本的内部一致性信度的Cronbach's α系数为0.74。探索性因素分析表明存在一个单一成分解（载荷为0.79 - 0.85），占解释方差的66%。通过测试生活活动参与得分与疾病严重程度之间的假定关系来确定结构效度。验证性因素分析显示数据与指定模型拟合良好，卡方(10, n = 302) = 8.074，p = 0.62。
该量表可用于：(a) 在临床环境中诊断在期望活动中的参与受限情况，指导关于增加参与的治疗计划的决策，并在哮喘管理中激发行为改变；(b) 在研究环境中探索影响受限和不受限参与的因素及后果，并作为一种结果指标来评估旨在促进儿童和青少年早期哮喘管理的项目的有效性。
