Psychometric Properties of the Syrian Arabic Version of the Impact of Event Scale-Revised in the Context of the Syrian Refugee Crisis.

The Impact of Event Scale-Revised (IES-R) is a widely used self-report questionnaire used to assess symptoms of posttraumatic stress disorder (PTSD). Although the IES-R has been translated and validated in multiple languages, no previous version has employed the Arabic dialect commonly spoken in Syria. The present work aimed to assess the psychometric properties of a Syrian Arabic version of the IES-R.