Journal Article


Filip K. Arnberg
Mimmie Willebrand
Jonathan I. Bisson
Neil P Roberts
Philip Hyland
Kristina Bondjers



psychometric properties confirmatory factor analysis prospective study reliability analysis international second order measure posttraumatic stress disorder

Validation of a clinician-administered diagnostic measure of ICD-11 PTSD and Complex PTSD: the International Trauma Interview in a Swedish sample (2019)

Abstract Background: The recently published ICD-11 includes substantial changes to the diagnosis of posttraumatic stress disorder (PTSD) and introduces the diagnosis of Complex PTSD (CPTSD). The International Trauma Interview (ITI) has been developed for clinicians to assess these new diagnoses but has not yet been evaluated. Objectives: To evaluate the psychometric properties of the Swedish translation of the ITI by examining the interrater agreement, latent structure, internal consistency, and convergent and discriminant validity. Methods: In a prospective study, 186 adults who had experienced a potentially traumatic event were assessed with the ITI and answered questionnaires for symptoms of posttraumatic stress, other psychiatric disorders, functional disability, and quality of life (QoL). Results: The diagnostic rate was 16% for PTSD and 6% for CPTSD. Interrater agreement was satisfactory (α = .76), and confirmatory factor analysis indicated that a two-factor second-20 order model consistent with the ICD-11 model of CPTSD provided acceptable fit to the data. Composite reliability analysis demonstrated that the ITI possessed acceptable internal reliability, and associations with measures of other psychiatric disorders, insomnia, functional disability, and QoL supported the concurrent validity of the ITI. Conclusion: Swedish ITI shows promise as a clinician-administered instrument to assess and diagnose ICD-11 PTSD and CPTSD.
Collections Ireland -> Maynooth University -> Academic Unit = Faculty of Science and Engineering: Psychology
Ireland -> Maynooth University -> Type = Article
Ireland -> Maynooth University -> Status = Published

Full list of authors on original publication

Filip K. Arnberg, Mimmie Willebrand, Jonathan I. Bisson, Neil P Roberts, Philip Hyland, Kristina Bondjers

Experts in our system

Jonathan I. Bisson
National College Ireland
Total Publications: 29
Neil Roberts
National College Ireland
Total Publications: 27
Philip Hyland
National College of Ireland
Total Publications: 231