Nursing Research Unit, Nursing Service, Tan Tock Seng Hospital, Singapore 308433, Singapore.
Alice Lee Centre of Nursing Studies, National University of Singapore, Singapore 119077, Singapore.
Int J Environ Res Public Health. 2022 Apr 12;19(8):4639. doi: 10.3390/ijerph19084639.
This study examined the psychometric properties of the seven-item mastery scale among 392 family caregivers of care dependent older adults in a tertiary hospital in Singapore. Item response theory (IRT) analysis and confirmatory factor analysis (CFA) were used to assess the scale's psychometric properties. Construct validity was assessed based on correlations between mastery and caregiver burden, depression, and quality of life. Data from the seven-item mastery scale showed acceptable reliability and model fit while IRT analysis showed that response categories were ordered but reflected poor fit for the two positively worded items. Without these two items, responses on the five-item version showed acceptable model fit and had acceptable reliability and high correlation with those on the seven-item version. Item responses on both the seven- and five-item versions show logical correlations with carer self-report on burden, depression, and quality of life. Further psychometric studies of the seven-item mastery scale are warranted. For practical applications such as caregiver screening during hospital admissions, the five-item mastery scale is fit for purpose.
本研究旨在检验新加坡一家三级医院 392 名照顾依赖老年人的家庭护理者的七项掌握量表的心理计量学特性。采用项目反应理论（IRT）分析和验证性因素分析（CFA）来评估该量表的心理计量学特性。基于掌握程度与照顾者负担、抑郁和生活质量之间的相关性来评估结构效度。七项掌握量表的数据显示出可接受的可靠性和模型拟合度，而 IRT 分析表明，反应类别是有序的，但反映出两个正向表述项目拟合不良。如果不包括这两个项目，五项版本的反应表现出可接受的模型拟合度，并且与七项版本的反应具有可接受的可靠性和高度相关性。两个版本的项目反应与照顾者自我报告的负担、抑郁和生活质量具有逻辑相关性。需要进一步对七项掌握量表进行心理计量学研究。对于医院入院期间的照顾者筛查等实际应用，五项掌握量表是合适的。
