Trauma, PTSD and dissociation
Impact of Event Scale-Revised (IES-R)
Impact of Event Scale-Revised (IES-R) — administration and scoring reference.
Reference information · Score-entry tool
- Last content update
- 2026-10-26
- Clinical review
- Not independently reviewed
- Source jurisdiction
- See individual sources
- Coverage
- Score-entry tool
| Field | Instrument context |
|---|---|
| Version | IES-R; 22-item DSM-IV-era event-related symptom measure |
| Respondent | Self-report |
| Purpose | Impact of Event Scale-Revised (IES-R) — administration and scoring reference. |
Clinician score entry
Anchor responses to a specified event and the past seven days. Use all 22 ratings from the original response coding.
Scores stay in this page’s memory. Reset or leave the page to clear them. Use the exact instrument version and its authorized form.
Administration
Anchor responses to a specified event and the past seven days. Use all 22 ratings from the original response coding.
Scoring method
Sum the 22 ratings scored 0–4 for a 0–88 total. Preserve the original item key when reporting separate subscale means.
Interpretation & limitations
- The 0–88 sum describes event-related distress. Subscale findings can characterize intrusion, avoidance and hyperarousal; no universal diagnostic cutoff is applied here.
- Interpret the findings alongside the clinical interview, functioning, history and relevant physical assessment.
- This DSM-IV-era measure does not directly implement DSM-5 or ICD-11 diagnostic criteria.
- Use the original instrument and manual for item wording, rating anchors, missing-data rules and any normative conversions. This reference does not establish a diagnosis or select treatment.