Journal Article


Andreas Maercker
Chris R. Brewin
Philip Hyland



self report psychology factor 3 confirmatory factor analysis posttraumatic stress disorder world health organization prisons international classification post traumatic stress disorder prospective study multiple regression analysis

Predictive Validity of ICD-11 PTSD as Measured by the Impact of Event Scale-Revised: A 15-Year Prospective Study of Political Prisoners (2017)

Abstract The 11th edition of the International Classification of Diseases (ICD-11; World Health Organization, 2017) proposes a model of posttraumatic stress disorder (PTSD) that includes 6 symptoms. This study assessed the ability of a classification-independent measure of posttraumatic stress symptoms, the Impact of Event Scale-Revised (Weiss & Marmar, 1996), to capture the ICD-11 model of PTSD. The current study also provided the first assessment of the predictive validity of ICD-11 PTSD. Former East German political prisoners were assessed in 1994 (N = 144) and in 2008-2009 (N = 88) on numerous psychological variables using self-report measures. Of the participants, 48.2% and 36.8% met probable diagnosis for ICD-11 PTSD at the first and second assessments, respectively. Confirmatory factor analysis supported the factorial validity of the 3-factor ICD-11 model of PTSD, as represented by items selected from the Impact of Event Scale-Revised. Hierarchical multiple regression analysis demonstrated that, controlling for sex, the symptom clusters of ICD-11 PTSD (reexperiencing, avoidance, and sense of threat) significantly contributed to the explanation of depression (R2 = .17), quality of life (R2 = .21), internalized anger (R2 = .10), externalized anger (R2 = .12), hatred of perpetrators (R2 = .15), dysfunctional disclosure (R2 = .27), and social acknowledgment as a victim (R2 = .12) across the 15-year study period. Current findings add support for the factorial and predictive validity of ICD-11 PTSD within a unique cohort of political prisoners.
Collections Ireland -> National College of Ireland -> Type = Article
Ireland -> National College of Ireland -> Subject = B Philosophy. Psychology. Religion: Psychology: Stress (Psychology): Post-traumatic stress disorder
Ireland -> Maynooth University -> Status = Published
Ireland -> National College of Ireland -> Subject = H Social Sciences: HN Social history and conditions. Social problems. Social reform: Prisons
Ireland -> Maynooth University -> Open Access DRIVERset
Ireland -> National College of Ireland -> Status = Published
Ireland -> Maynooth University -> Academic Unit = Faculty of Science and Engineering: Psychology
Ireland -> Maynooth University -> Type = Article
Ireland -> Maynooth University -> Academic Unit = Faculty of Science and Engineering
Ireland -> National College of Ireland -> Subject = B Philosophy. Psychology. Religion: Psychology

Full list of authors on original publication

Andreas Maercker, Chris R. Brewin, Philip Hyland

Experts in our system

Andreas Maercker
Maynooth University
Total Publications: 14
Chris R. Brewin
National College Ireland
Total Publications: 25
Philip Hyland
National College of Ireland
Total Publications: 231