Psychometric Properties of the Danish International Trauma Questionnaire-Child and Adolescent Version (ITQ-CA).

With the introduction of the ICD-11 diagnostic manual, the need for developing and validating new assessment instruments has become urgent. The International Trauma Questionnaire-Child and Adolescent version (ITQ-CA) assesses posttraumatic stress disorder (PTSD) and complex PTSD (CPTSD) based on the ICD-11 diagnostic definition. This study examines the psychometric properties of the Danish version of the ITQ-CA in a non-clinical sample of 226 adolescents.

Cross-cultural validity and psychometric properties of the International Trauma Questionnaire in a clinical refugee sample.

The ICD-11 post-traumatic stress disorder (PTSD) and complex PTSD diagnoses have been examined in several studies using the International Trauma Questionnaire (ITQ). The cross-cultural validity of the ITQ has not previously been studied using item responses theory methods focused on the issue of equal item functioning and thus comparability of scores across language groups. To investigate the cross-cultural validity of the ITQ scales considering specifically local independence of items and differential item functioning (DIF) in a cross-cultural sample of refugees.

Testing the validity of ICD-11 PTSD and CPTSD among refugees in treatment using latent class analysis.

Introduction: The WHO has proposed posttraumatic stress (PTSD) and Complex PTSD (CPTSD) trauma-related sibling-disorders in ICD-11. The proposal has received support from research among clinical and community samples alike but only few studies have tested the validity of these disorders in a sample of refugees using the International Trauma Questionnaire especially designed for assessment of ICD-11 PTSD and CPTSD.

Methods: Latent class analysis was used to test the validity of the ICD-11 PTSD and CPTSD distinction in a heterogeneous group of 284 highly symptomatic refugees registered for treatment at a Danish treatment-center.