Loneliness is a clinically relevant indicator of perceived social connection and emotional well-being. The UCLA Loneliness Scale (UCLA) is a self-report measure designed to assess subjective feelings of loneliness and perceived social isolation. It is commonly used in clinical screening and research contexts to inform case conceptualization and track change over time.
The instrument includes 20 items and typically takes about 4 minutes to complete. Respondents rate statements reflecting perceived social relationships and connectedness, supporting a structured estimate of loneliness severity. The UCLA Loneliness Scale (UCLA) was developed by Daniel W. Russell and Mary E. Ferguson, and results should be interpreted within the broader clinical context, including mood, anxiety, and interpersonal functioning.