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Validation of the Arabic Version of Calgary Depression Scale for Schizophrenia

Author

Listed:
  • Yahya Hani
  • Suhaila Ghuloum
  • Ziyad Mahfoud
  • Mark Opler
  • Anzalee Khan
  • Arij Yehya
  • Abdulmoneim Abdulhakam
  • Samer Hammoudeh
  • Azza Al-Mujalli
  • Reem Elsherbiny
  • Hassen Al-Amin

Abstract

Background: Patients with schizophrenia commonly show both depressive and negative symptoms that can differentially affect the prognosis and course of treatment. The Calgary Depression Scale for Schizophrenia (CDSS) was designed to distinguish between depression and negative symptoms in patients with schizophrenia. The purpose of this study is to validate an Arabic version of the CDSS among patients with schizophrenia. Methods: The diagnosis of schizophrenia was confirmed using the Arabic Mini International Neuropsychiatric Interview 6 (MINI 6). A standardized translation back-translation process was adopted. One rater administered the Arabic CDSS to subjects with schizophrenia as well as to a control group who should not have any psychiatric disorder except for depression. Another rater, blinded to the results administered the already validated Arabic version of Beck Depression Inventory-II (BDI-II). Results: We recruited 102 patients and 102 controls subjects. The CDSS showed good internal consistency in the active group (Cronbach’s alpha = 0.82). The Intraclass Coefficient correlations (ICC) for the inter-rater reliability (n = 21) was 0.90, p

Suggested Citation

  • Yahya Hani & Suhaila Ghuloum & Ziyad Mahfoud & Mark Opler & Anzalee Khan & Arij Yehya & Abdulmoneim Abdulhakam & Samer Hammoudeh & Azza Al-Mujalli & Reem Elsherbiny & Hassen Al-Amin, 2016. "Validation of the Arabic Version of Calgary Depression Scale for Schizophrenia," PLOS ONE, Public Library of Science, vol. 11(9), pages 1-11, September.
    • Handle: RePEc:plo:pone00:0162304
    DOI: 10.1371/journal.pone.0162304
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