Confirmatory factor analysis of the Clinician-Administered PTSD Scale (CAPS-5) based on DSM-5 vs. ICD-11 criteria

Research output: Contribution to journalResearch articleContributedpeer-review


  • Antje Krüger-Gottschalk - , University of Münster (Author)
  • Thomas Ehring - , Ludwig Maximilian University of Munich (Author)
  • Christine Knaevelsrud - , Free University of Berlin (Author)
  • Anne Dyer - , Heidelberg University  (Author)
  • Ingo Schäfer - , University Hospital Hamburg Eppendorf (Author)
  • Julia Schellong - , Department of Psychotherapy and Psychosomatic Medicine (Author)
  • Heinrich Rau - , German Federal Armed Forces Hospital Berlin (Author)
  • Kai Köhler - , German Federal Armed Forces Hospital Berlin (Author)


INTRODUCTION: Many studies have investigated the latent structure of the DSM-5 criteria for posttraumatic stress disorder (PTSD). However, most research on this topic was based on self-report data. We aimed to investigate the latent structure of PTSD based on a clinical interview, the Clinician-Administered PTSD Scale (CAPS-5).

METHOD: A clinical sample of 345 participants took part in this multi-centre study. Participants were assessed with the CAPS-5 and the Posttraumatic Stress Disorder Checklist (PCL-5). We evaluated eight competing models of DSM-5 PTSD symptoms and three competing models of ICD-11 PTSD symptoms.

RESULTS: The internal consistency of the CAPS-5 was replicated. In CFAs, the Anhedonia model emerged as the best fitting model within all tested DSM-5 models. However, when compared with the Anhedonia model, the non-nested ICD-11 model as a less complex three-factor solution showed better model fit indices.

DISCUSSION: We discuss the findings in the context of earlier empirical findings as well as theoretical models of PTSD.


Original languageEnglish
Article number2010995
Number of pages13
Journal European journal of psychotraumatology : official organ of the European Society of Traumatic Stress Studies (ESTSS)
Issue number1
Publication statusPublished - 19 Jan 2022

External IDs

PubMedCentral PMC8774060
Scopus 85123416272


Sustainable Development Goals


  • Adult, Anhedonia, Diagnostic and Statistical Manual of Mental Disorders, Factor Analysis, Statistical, Female, Humans, International Classification of Diseases/standards, Interviews as Topic, Male, Psychiatric Status Rating Scales/statistics & numerical data, Stress Disorders, Post-Traumatic/diagnosis, latent structure, ICD-11, DSM-5, CAPS-5, PTSD

Library keywords