Psychometric Evaluation of the Dutch International Trauma Questionnaire for the 11th Revision of the International Classification of Diseases Posttraumatic Stress Disorder and Complex Posttraumatic Stress Disorder.
Internal consistency and convergent validity for the ITQ-12 and ITQ-28 were supported. The factorial validity was good for the ITQ-12 and acceptable for the ITQ-28. The discrepancy in Complex PTSD rates between the ITQ-12 and ITQ-28 calls for further testing of scoring methods against diagnostic clinical interviews for Complex PTSD.
