ArticleBMC psychology2025
Psychometric properties and cross-cultural adaptation of the UCLA loneliness scale, 6-item among older Iranian people.
Article in BMC psychology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Longitudinal Association Between Physical Exercise and Depressive Symptoms in Older Adults: The Prospective Explanatory Role of Loneliness and the Moderating Role of Cognitive Emotion Regulation.Behavioral sciences (Basel, Switzerland) · 2026Article
- Long-term risk of irritable bowel syndrome associated with social isolation and loneliness: a large-scale prospective cohort study with mediation analysis.Therapeutic advances in gastroenterology · 2026Article
- Psychometric evaluation of the UCLA-8 loneliness scale among structurally vulnerable older adults in rural India: implications for equity-oriented screening in primary health care.BMC geriatrics · 2025Article
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Abstract
backgroundLoneliness 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.
methodsIn 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.
resultsApproximately 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.
conclusionThe Persian version of UCLA Loneliness Scale, 6-item presented good psychometric properties and could be used to measure loneliness in community-dwelling older adults.
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