Impact of Event Scale - Revised.

IES-R

What it measures

Subjective distress following a specific traumatic event across three subscales: intrusion, avoidance, and hyperarousal (added in the revision)

Length and format

22 items. 5-point distress (0-4, not at all to extremely), past 7 days; subscale means or total 0-88 (self-report questionnaire)

Language versions

Many languages incl. ES, FR, DE, ZH, JA, AR, NL, BCMS and others; one of the most-translated trauma measures

Normative data

No normative data held in our reference library for this instrument. That is a statement about our library, not about the published literature.

Licence

public-domain / open

Licence classification is a research judgement by the catalogue’s authors, not legal advice, and it can be out of date. Confirm terms with the copyright holder or publisher before using an instrument, especially for commercial use.

Reference

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). New York: Guilford.