Bahadori Farzaneh, Asadollahi Abdolrahim, Ghajari Ogholgol, Yarelahi Mahsa
Department of Gerontology, University of Social Welfare and Rehabilitation Sciences, kodakyar Ave, daneshjo Blvd, Evin, 1985713871, Tehran, Iran.
Department of Gerontology, School of Health, Shiraz University of Medical Science, Shiraz, Iran.
BMC Psychol. 2025 Jun 2;13(1):592. doi: 10.1186/s40359-025-02913-8.
Loneliness is common in old individuals, and the UCLA loneliness scale is one of the most reliable tools for measuring loneliness worldwide. The present study aimed to investigate the psychometric properties of the 6-item UCLA loneliness scale in the Iranian older population.
In this psychometric study, we outline the translation and validation of the 6-item UCLA loneliness scale among 612 older adults with a mean age of 68.2 ± 7.2 years (females = 60.9%) in 2023. The participants were selected via stratified random sampling. Data were collected through face‒to-face interviews via the UCLA Loneliness Scale, Loneliness Scale, Oxford Happiness Scale, and demographic questionnaire. The data were analyzed via SPSS version 26 and AMOS version 25 software. The content validity, construct validity, and internal consistency were investigated, and ROC analysis and convergent validity were also assessed.
Approximately two-thirds of the participants were married, and three-fourths had at least one chronic condition. The EFA assigned a two-factor solution for the UCLA loneliness scale, confirmed by CFA (GFI = 0.90, CFI = 0.91, and RMSEA = 0.056). Internal consistency was confirmed by the ICCs, Cronbach's alphas, and McDonald's Omega values (a ≥ 0.90). The ROC analysis indicated an exact cutoff value for older adults with and without severe loneliness with high sensitivity and specificity.
The Persian version of UCLA Loneliness Scale, 6-item presented good psychometric properties and could be used to measure loneliness in community-dwelling older adults.
孤独在老年人中很常见，加州大学洛杉矶分校孤独量表是全球最可靠的孤独测量工具之一。本研究旨在调查6项版加州大学洛杉矶分校孤独量表在伊朗老年人群体中的心理测量特性。
在这项心理测量研究中，我们概述了2023年对612名平均年龄为68.2±7.2岁（女性占60.9%）的老年人进行的6项版加州大学洛杉矶分校孤独量表的翻译和验证。参与者通过分层随机抽样选取。通过面对面访谈，使用加州大学洛杉矶分校孤独量表、孤独量表、牛津幸福量表和人口统计学问卷收集数据。数据通过SPSS 26版和AMOS 25版软件进行分析。研究了内容效度、结构效度和内部一致性，还评估了ROC分析和收敛效度。
大约三分之二的参与者已婚，四分之三的人至少患有一种慢性病。探索性因子分析为加州大学洛杉矶分校孤独量表指定了一个双因子解决方案，并得到验证性因子分析的证实（GFI = 0.90，CFI = 0.91，RMSEA = 0.056）。内部一致性通过组内相关系数、克朗巴哈α系数和麦克唐纳ω值得到证实（α≥0.90）。ROC分析表明，对于有和没有严重孤独感的老年人，有一个具有高敏感性和特异性的确切临界值。
6项版加州大学洛杉矶分校孤独量表的波斯语版本具有良好的心理测量特性，可用于测量社区居住老年人的孤独感。
