Three scales about childhood trauma, traumatic experiences and bullying: Greek translation, test-retest reliability.

Exposure to traumatic life events is one of the most robust predictors for psychosis. The Childhood Trauma Questionnaire-Short Form (CTQ-SF), a version of Childhood Experience of Care and Abuse (CECAEUGEI) and a version of the Bullying Questionnaire (BQEUGEI) refer to early life adversities, traumatic episodes and bullying. Those scales belong to a battery of psychometric tools detecting environmental and genetic factors associated with First Episode Psychosis (FEP) that was employed in the Athens-FEP study.