Psychometric Validation of the Spanish OSAKA Questionnaire: A Cross-Sectional Study Among Colombian Dental Professionals
Abstract
Objectives: To evaluate the psychometric properties of the Spanish version of the obstructive sleep apnea knowledge and attitudes (OSAKA) questionnaire among dental professionals in Colombia. Methods: A cross-sectional study was conducted in Manizales, Colombia, between January and June 2024. A total of 120 dental professionals, including general dentists, specialists, residents, and academic clinicians, were selected through stratified random sampling. Participants completed the Spanish-adapted OSAKA questionnaire and a structured sociodemographic survey. Internal consistency was assessed using Cronbach’s alpha (α) and McDonald’s Omega (Ω). Construct validity was examined through exploratory factor analysis (EFA), with Kaiser Meyer Olkin (KMO) values and Bartlett’s test. Results: The knowledge subscale (18 items) showed good reliability (α = 0.83; Ω = 0.83), while the attitude subscale (5 items) showed near-acceptable reliability (α = 0.68; Ω = 0.59). KMO values were 0.79 for knowledge and 0.57 for attitudes; Bartlett’s test was significant in both cases (p ≤ 0.001). EFA supported structural validity: six components with eigenvalues >1 explained 61.66% of the variance for knowledge, and two components explained 79.49% for attitudes. Significant differences in attitude scores were found among professional groups (p ≤ 0.001, η2 = 0.13), with specialists scoring highest (X¯ = 17.66) and general dentists lowest (X¯ = 14.62). Knowledge scores did not significantly differ between…
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