Traumatic Exposure Severity Scale (TESS): a measure of exposure to major disasters.

The debate about the role of the intensity of the stressor has occupied a central focus in posttraumatic stress disorder literature. There is currently a paucity of instruments with established psychometric properties measuring severity of trauma exposure in disaster survivors. The Traumatic Exposure Severity Scale was developed specifically to assess dimensions of exposure to an earthquake disaster in adults. Its 24 items assess a wide range of stressors organized into five subscales, derived from factor analyses: Resource Loss, Damage to Home and Goods, Personal Harm, Concern for Significant Others, and Exposure to the Grotesque. The scale provides both Occurrence and Distress scores. It has good internal reliability and validity. The instrument correlates significantly, but moderately, with a number of traumatic stress measures and the Beck Depression Index.