IMPACT OF EVENT SCALE-REVISED

IMPACT OF EVENT SCALE-REVISED
Daniel S. Weiss, PhD & Charles R. Marmar, MD

Instructions: Below is a list of difficulties people sometimes have after stressful life events.

Please read each item and then indicate how distressing each difficulty has been for you DURING THE PAST SEVEN DAYS with respect to the event, were you distressed or bothered by these difficulties?

Not at all=0, Little bit =1, Moderately=2, Quite a bit = 3, Extremely= 4
Name*

First NameLast Name
Phone Number*
Please enter a valid phone number.
Age
Email*
example@example.com
Are you a first responder or family of first responder?*
Referring clinician (if applicable):
Would you like us to submit these results to the above clinician?

YesNo
Please read each item and then indicate how distressing each difficulty has been for you in relation to the
Any reminder brought back feelings about it.*

Not at allLittle BitModeratelyQuite a bitExtremely
I had trouble staying asleep.*

Not at allLittle BitModeratelyQuite a bitExtremely
Other things kept making me think about it.*

Not at allLittle BitModeratelyQuite a bitExtremely
I felt irritable and angry.*

Not at allLittle BitModeratelyQuite a bitExtremely
I avoided letting myself get upset when I thought about it or was reminded of it.*

Not at allLittle BitModeratelyQuite a bitExtremely
I thought about it when I didn't mean to.*

Not at allLittle BitModeratelyQuite a bitExtremely
I felt as if it hadn't happened or wasn't real.*

Not at allLittle BitModeratelyQuite a bitExtremely
I stayed away from reminders about it.*

Not at allLittle BitModeratelyQuite a bitExtremely
Pictures about it popped into my mind.*

Not at allLittle BitModeratelyQuite a bitExtremely
I was jumpy and easily startled.*

Not at allLittle BitModeratelyQuite a bitExtremely
I tried not to think about it.*

Not at allLittle BitModeratelyQuite a bitExtremely
I was aware that I still had a lot of feelings about it, but I didn't deal with them.*

Not at allLittle BitModeratelyQuite a bitExtremely
My feelings about it were kind of numb.*

Not at allLittle BitModeratelyQuite a bitExtremely
I find myself acting or feeling like I was back at that time.*

Not at allLittle BitModeratelyQuite a bitExtremely
I had trouble falling asleep.*

Not at allLittle BitModeratelyQuite a bitExtremely
I had waves of strong feelings about it.*

Not at allLittle BitModeratelyQuite a bitExtremely
I tried to remove it from my memory.*

Not at allLittle BitModeratelyQuite a bitExtremely
I had trouble concentrating.*

Not at allLittle BitModeratelyQuite a bitExtremely
Reminders of it caused me to have physical reactions, such as sweating, trouble breathing.*

Not at allLittle BitModeratelyQuite a bitExtremely
I had dreams about it.*

Not at allLittle BitModeratelyQuite a bitExtremely
I felt watchful and on-guard.*

Not at allLittle BitModeratelyQuite a bitExtremely
I tried not to talk about it.*

Not at allLittle BitModeratelyQuite a bitExtremely
Scoring Impact of Event Scale - Revised

Item Response Anchors are 0 = Not at all; I = A little bit; 2 = Moderately; 3 = Quite a bit; 4 = Extremely. The Intrusion subscale is the MEAN item response of items 1. 2. 3, 6, 9. 14. 16, 20. Thus, scores can range from 0 through 4.

The Avoidance subscale is the MEAN item response of items 5, 7, 8, 11, 12, 13, 17.22. Thus, scores can range from 0 through 4.

The Hyperarousal subscale is the MEAN item response of items 4. 10, 15, 18, 19,21 Thus, scores can range from 0 through 4.
Total IES R score

The revised version of the Impact of Event Scale (IES-R) has seven additional questions and a scoring range of 0 to 88.

On this test, scores that exceed 24 can be quite meaningful. High scores have the following associations.

24 or more	PTSD is a clinical concern. Those with scores this high who do not have full PTSD will have partial PTSD or at least some of the symptoms.
33 and above	This represents the best cutoff for a probable diagnosis of PTSD.
37 or more	This is high enough to suppress your immune system's functioning (even 10 years after an impact event).

The IES-R is very helpful in measuring the affect of routine life stress, everyday traumas and acute stress.

Intrusion subscale
Avoidance subscale
Hyperarousal subscale
Download the PDF version here for all citations used in this scale.

Contact Information: Daniel S. Weiss, Ph.D., Professor of Medical Psychology. Department
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