Tuesday, 17 May 2022

Impact of Event Scale-Revised (IES-R)

 Impact of Event Scale-Revised (IES-R)

(Weiss & Marmar, 1997).

The IES-R is a 22-item self-report measure assessing stress associated with the experience of traumatic events in adults. The IES-R can be used as a screening tool. The IES-R has been used in several studies with adolescents (e.g. Xia & Ding, 2011) and a separate adolescent version exists (CRIES-13, Smith, Perrin, Dyregrov, & Yule, 2003). The IES-R consists of three subscales: Intrusion, Avoidance, and Hyperarousal. Sample items include, “Pictures appeared in my mind,” “I tried not to talk about it,” and “I was jumpy and easily startled.” Each item is rated on a 5-point Likert scale from zero (“not at all”) to four (“extremely”). The IES-R demonstrates excellent internal consistency for the total score (α = .96), and good to excellent internal consistency for the subscales (r =.87-.94; Creamer, Bell, & Failla, 2003). It also demonstrates high concurrent validity with the Posttraumatic Stress Disorder (PTSD) Checklist (PCL; Weathers, Litz, Herman, Huska, & Keane, 1993). When compared to the PCL, a cut-off score of 33 provided a sensitivity of .91, a specificity of .82, a positive predictive power of .90, and a negative predictive power of .84 (Creamer et al., 2003). The measure is available via (daniel.weiss@ucsf.edu). The adolescent version of this measure is available (http://www.heardalliance.org/wp-content/uploads/2011/04/Child-Impact-of-Traumatic-Event-Scale-English.pdf).

(Orsillo, 2001).

Clinical Rating Scales and Psychometric Tests

Adult Instruments

Depression

Anxiety

Catatonia

Trauma

Other

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