Un recurso para atención primaria de la salud mental. DASS-21, propiedades psicométricas

Objective. Determine the psychometric characteristics of DASS-21 and identify its advantages as an aid in diagnosis screening mental health disorders (depression, anxiety stress). Materials methods. Descriptive cross-sectional study. The sample was non-probabilistic 964 university students from different regions Colombia who met selection criteria answered questionnaire. Using Cronbach's Alfa, internal consistency questionnaire measured exploratory factor analysis applied for validation construct, using a methodology main axes with varimax rotation. To establish number factors to be conserved, Kaiser criterion used. It considered significant p value <0.05. Results. by students. Reliability were corroborated (Cronbach's Alpha obtained total 21 items 0.93) subscales values higher than 0.8 (depression 0.85, 0.82 stress 0.85). determine suitability carrying out analysis, Bartlett sphericity test performed, which yielded < 0.0001, later calculated measure adequacy sample, called Kaiser-Meyer-Olkin (KMO), whose 0.95, expressing that it is appropriate perform analysis. Conclusions. Its use at primary level care recommended, both support follow-up patients depression, stress.