Oviedo Sleep Questionnaire: Evidence of Validity and Reliability in Chilean University Students

Abstract

The Oviedo Sleep Questionnaire (COS) assesses sleep disorders like insomnia and hypersomnia. However, there are no Latin America studies confirming the two-factor structure obtained in previous research. Objective: To analyze and confirm the two-factor structure of the COS and estimate its psychometric properties. Method: The COS and the Depression, Anxiety, and Stress Scales (DASS-21) were applied to a sample of 601 Chilean university students. Confirmatory factor analysis and correlations between the COS and DASS-21 subscales were performed. Results: The two-factor structure is replicated, obtaining reasonable adjustment indicators and adequate reliability. Evidence of validity was provided based on the moderate associations between the COS and the Dass-21. Conclusions: the factorial structure is confirmed, and an instrument with valid, reliable evidence is obtained. Thus, this instrument can contribute to the diagnosis of sleep disorders in young people.