An initial psychometric assessment of an ICD 11 based measure of PTSD and complex PTSD (ICD TQ) Evidence of construct validity.
Among the conditions following exposure to traumatic life events proposed by ICD 11 are Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD) The primary aim of this study was to provide an assessment of the reliability and validity of a newly developed self report measure of ICD 11 PTSD and CPTSD: the ICD 11 Trauma Questionnaire (ICD TQ) Participants in this study were a sample of individuals who were referred for psychological therapy to a National Health Service (NHS) trauma centre in Scotland (N=193) Participants completed the ICD TQ and measures of traumatic life events, DSM 5 PTSD, emotion dysregulation, self esteem, and interpersonal difficulties. Confirmatory factor analysis results supported the factorial validity of the ICD TQ with results in line with ICD 11 proposals. The ICD TQ demonstrated satisfactory internal reliability, and correlation results indicated that the scale exhibited convergent and discriminant validity. Current results provide initial support for the psychometric properties of this initial version of the ICD TQ. Future theoretical and empirical work will be required to generate a final version of the ICD TQ that will match the diagnostic structure of PTSD and CPTSD when ICD 11 is published.
Journal of anxiety disorders