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IES-R v.1

I avoided letting myself get upset when I thought about it or was reminded of it

I felt as if it hadn't happened or wasn't real

I stayed away from reminders about it

I tried not to think about it

I was aware that I still had a lot of feelings about it, but I didn't deal with them

My feelings about it were kind of numb

I tried to remove it from my memory

I tried not to talk about it

Any reminder brought back feelings about it

I had trouble staying asleep

Other things kept making me think about it

I thought about it when I didn't mean to

Pictures about it popped into my mind

I found myself acting or feeling like I was back at that time

I had waves of strong feelings about it

I had dreams about it

I felt irritable and angry

I was jumpy and easily startled

I had trouble falling asleep

I had trouble concentrating

Reminders of it caused me to have physical reactions, such as sweating, trouble breathing, nausea, or a pounding heart

I felt watchful and on guard

The revised Impact of Event Scale (IES-R) is a self-reported questionnaire for assessment of subjective stress caused by traumatic events.

Joana Vicente

joana.vicente@cambio.se

Cambio Healthcare Systems

Impact of event scale revised ( IES-R) is a 22-item self-report questionnaire to assess subjective distress caused by traumatic events.

To measure the affect of routine life stress, everyday trauma and acute stress. Respondents are asked to select a specific stressful moment in life and then indicate how much they were distressed or bothered during the past seven days by each of the difficulties listed. Items are rated from 0 (\"not at all\") to 4 (\"extremely\"). The score ranges from 0 to 88 and subscale scores can be used to calculate the intrusion, avoidance and hyperarousal subscales. These subscales are measured in means. The maximum mean score on each of the three subscales is ‘4’, therefore the maximum ‘total mean’ IES-R score is 12. Lower scores are better. A total IES-R score of 33 or over from a theoretical maximum of 88 signifies the likely presence of PTSD.

IES-R (and IES) is not used to diagnosis PTSD, however, cutoff scores for a preliminary diagnosis of PTSD have been cited in the literature. Do not use for children or teens and do not use to evaluate for periods longer than one week.

1-Weiss, D. S., & Marmar, C. R. (1996). The Impact of Event Scale - Revised. In J. Wilson & T. M. Keane (Eds.), Assessing psychological trauma and PTSD (pp. 399-411). New York: Guilford. 2-Horowitz, M. Wilner, N. & Alvarez, W. (1979). Impact of Event Scale: A measure of subjective stress. Psychosomatic Medicine, 41, 209-218. 3-Hutchins, E. & Devilly, G.J. (2005). Impact of Events Scale. Victim's Web Site. http://www.swin.edu.au/victims/resources/assessment/ptsd/ies.html 4-Weiss, D.S. (2007). The Impact of Event Scale: Revised. In J.P. Wilson & C.S. Tang (Eds.), Cross-cultural assessment of psychological trauma and PTSD (pp. 219-238). New York: Springer.

OBSERVATION.impact_of_event_scale_revised.v1

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