Research Output

Validation Of Posttraumatic Stress Disorder (PTSD) And Complex-PTSD Using The International Trauma Questionnaire ACTA

  Objective: The 11th version of the International Classification of Diseases (ICD-11) has proposed two related trauma diagnoses: Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD). Using a newly developed, disorder-specific measure of PTSD and CPTSD called the International Trauma Questionnaire (ITQ) the current study will: (1) assess the factorial validity of ICD-11 PTSD and CPTSD; (2) provide the first test of the discriminant validity of these constructs; and (3) provide the first comparison of ICD-11, and Diagnostic and Statistical Manual, Fifth Edition (DSM-5), PTSD diagnostic rates using disorder-specific measures.
Method: ICD-11 and DSM-5 PTSD specific measures were completed by a British clinical sample of trauma-exposed patients (N = 171). The structure and validity of ICD-11 PTSD and CPTSD were assessed by means of factor analysis and assessing relationships with criterion variables.
Results: Diagnostic rates under ICD-11 were significantly lower than those under DSM-5. A two-factor second-order model reflecting the distinction between PTSD and CPTSD best represented the data from the ITQ; and the PTSD and CPTSD factors differentially predicted multiple psychological variables.
Conclusion: The factorial and discriminant validity of ICD-11 PTSD and CPTSD was supported, and ICD-11 produces fewer diagnostic cases than DSM-5.

  • Type:


  • Date:

    19 June 2017

  • Publication Status:


  • ISSN:


  • Library of Congress:

    RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry

  • Dewey Decimal Classification:

    616.8 Nervous & mental disorders

  • Funders:

    Edinburgh Napier Funded


Hyland, P., Shevlin, M., Brewin, C. R., Cloitre, M., Downes, A. J., Jumbe, S., …Roberts, N. P. (in press). Validation Of Posttraumatic Stress Disorder (PTSD) And Complex-PTSD Using The International Trauma Questionnaire ACTA. Acta psychiatrica Scandinavica. ISSN 0001-690X



This is the peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving


posttraumatic stress disorder (PTSD); complex posttraumatic stress disorder (CPTSD); ICD-11; DSM-5; stress-related disorders; anxiety and depression

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