McAlinden Niamh M, Oei Tian P S
School of Psychology, University of Queensland, Brisbane Qld 4072, Australia.
Compr Psychiatry. 2006 Jul-Aug;47(4):307-14. doi: 10.1016/j.comppsych.2005.09.003. Epub 2006 Apr 19.
In 1992, Frisch et al (Psychol Assess. 1992;4:92-101) developed the Quality of Life Inventory (QOLI) to measure the concept of quality of life (QOL) because it has long been thought to be related to both physical and emotional well-being. However, the psychometric properties of the QOLI in clinical populations are still in debate. The present study examined the factor structure of QOLI and reported its validity and reliability in a clinical sample.
Two hundred seventeen patients with anxiety and depressive disorders completed the QOLI, and additional questionnaires measuring symptoms (Zung Self-rating Depression Scale, Beck Anxiety Inventory, Fear Questionnaire, Depression Anxiety Stress Scale-Stress) and subjective well-being (Satisfaction With Life Scale) were also used.
Exploratory factor analysis via the principal components method, with oblique rotation, revealed a 2-factor structure that accounted for 42.73% of the total variance, and a subsequent confirmatory factor analysis suggested a moderate fit of the data to this model. The 2 factors appeared to describe self-oriented QOL and externally oriented QOL. The Cronbach alpha coefficients were 0.85 for the overall QOLI score, 0.81 for the first factor, and 0.75 for the second factor.
Consistent evidence was also found to support the concurrent, discriminant, predictive, and criterion-related validity of the QOLI.
1992年，弗里施等人（《心理评估》。1992年；4：92 - 101）开发了生活质量量表（QOLI）来衡量生活质量（QOL）的概念，因为长期以来人们一直认为它与身心健康都有关系。然而，QOLI在临床人群中的心理测量特性仍存在争议。本研究检验了QOLI的因子结构，并报告了其在临床样本中的有效性和可靠性。
217名焦虑和抑郁障碍患者完成了QOLI，还使用了其他测量症状（zung自评抑郁量表、贝克焦虑量表、恐惧问卷、抑郁焦虑压力量表 - 压力分量表）和主观幸福感（生活满意度量表）的问卷。
通过主成分法进行探索性因子分析，并进行斜交旋转，揭示了一个占总方差42.73%的两因子结构，随后的验证性因子分析表明数据与该模型拟合度适中。这两个因子似乎描述了自我导向的生活质量和外部导向的生活质量。生活质量量表总分的克朗巴赫α系数为0.85，第一个因子为0.81，第二个因子为0.75。
也发现了一致的证据支持生活质量量表的同时效度、区分效度、预测效度和效标关联效度。
