Psychometric Properties of the Posttraumatic Cognitions Inventory-9 items in an Iranian sample.

Introduction: The Posttraumatic Cognitions Inventory is a largely used measure to assess negative posttraumatic cognitions that are common among individuals with trauma-related disorders. There was a need to have a valid and reliable short form of it in Persian.

Objective: This study aimed to translate the Posttraumatic Cognitions Inventory-9 item (PTCI-9) into Persian, and evaluate its characteristics and psychometric properties.