Factor structure and reliability of the depression, anxiety and stress scales in a large portuguese community sample

• José Jacinto Vasconcelos Raposo ^[1] ; Helder Miguel Fernandes ^[1] ; Carla Teixeira Pinto ^[1]
  1. [1] Universidade de Trás-os-Montes e Alto Douro

     Universidade de Trás-os-Montes e Alto Douro

     Vila Real (São Pedro), Portugal

     
• Localización: The Spanish Journal of Psychology, ISSN 1138-7416, Nº. 16, 2013, págs. 1-10
• Idioma: inglés
• DOI: 10.1017/sjp.2013.15
• Enlaces
  • Texto completo
• Dialnet Métricas: 4 Citas
• Resumen

  • The purpose of the present study was to assess the factor structure and reliability of the Depression, Anxiety and Stress Scales (DASS-21) in a large Portuguese community sample. Participants were 1020 adults (585 women and 435 men), with a mean age of 36.74 (SD = 11.90) years. All scales revealed good reliability, with Cronbach�s alpha values between .80 (anxiety) and .84 (depression). The internal consistency of the total score was .92. Confirmatory factor analysis revealed that the best-fitting model (*CFI = .940, *RMSEA = .038) consisted of a latent component of general psychological distress (or negative affectivity) plus orthogonal depression, anxiety and stress factors. The Portuguese version of the DASS-21 showed good psychometric properties (factorial validity and reliability) and thus can be used as a reliable and valid instrument for measuring depression, anxiety and stress symptoms.

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