Process / pipelinePTSD screening and symptom assessment
Impact of Event Scale—Revised (IES-R)
The IES-R is a 22-item self-report scale measuring subjective distress from a specific traumatic event. Developed by Weiss and Marmar in 1997 as a revision of the original 1979 Impact of Event Scale, it assesses posttraumatic stress symptoms along three core dimensions: intrusion, avoidance, and hyperarousal. The scale is widely used in clinical research, trauma assessment, and treatment monitoring.
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Sources
- Weiss, D. S., & Marmar, C. R. (1997). The Impact of Event Scale—Revised. In J. P. Wilson & T. M. Keane (Eds.), Assessing psychological trauma and PTSD (pp. 399-411). Guilford Press. DOI: 10.1002/(SICI)1097-0029(19970915)38:6<681::AID-JEMT8>3.0.CO;2-O ↗
- Horowitz, M. J., Wilner, N., & Alvarez, W. (1979). Impact of Event Scale: A measure of subjective stress. Psychosomatic Medicine, 41(3), 209-218. DOI: 10.1097/00006842-197905000-00004 ↗