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Br J Psychiatry. 2002 Mar;180:205-9.

Impact of Event Scale: psychometric properties.

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  • 1Department of Psychology, Umea University, Umea, Sweden.

Abstract

BACKGROUND:

For more than 20 years, the Impact of Event Scale (IES) has been widely used as a measure of stress reactions after traumatic events.

AIMS:

To review studies that evaluated the IES's psychometric properties.

METHOD:

Literature review.

RESULTS:

The results indicated that the IES's two-factor structure is stable over different types of events, that it can discriminate between stress reactions at different times after the event, and that it has convergent validity with observer-diagnosed post-traumatic stress disorder. The use of IES in many psychopharmacological trials and outcome studies is supportive of the measure's clinical relevance.

CONCLUSIONS:

The IES is a useful measure of stress reactions after a range of traumatic events, and it is valuable for detecting individuals who require treatment.

PMID:
11872511
[PubMed - indexed for MEDLINE]
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