The UCLA Loneliness Scale is a widely used tool to assess the extent to which individuals perceive themselves as socially isolated or lacking meaningful connections. Chronic loneliness is strongly associated with adverse neurological outcomes, including increased risk of depression, cognitive decline, and neurodegenerative diseases such as Alzheimer’s. By capturing the emotional and psychological dimensions of social disconnection, the scale provides insights into how loneliness impacts mental and brain health. It can guide targeted interventions, such as fostering social skills, improving relationship quality, and encouraging community engagement, to mitigate the negative effects of isolation.
The UCLA Loneliness Scale consists of 20 statements, each rated on a 4-point Likert scale ranging from "Never" (1) to "Often" (4), reflecting how often individuals experience feelings of loneliness or lack of connection. Scores are summed, with higher scores indicating greater perceived loneliness. Shortened versions of the scale, including 3- and 10-item formats, are also available for quicker assessments. The questionnaire can be self-administered or facilitated in clinical, research, or online settings. Regular use helps track changes over time and evaluate the effectiveness of social or therapeutic interventions aimed at reducing loneliness and improving social engagement.