Acute Stress Disorder Structured Interview (ASDI)

Summary

The ASDI is a structured interview for diagnosing ASD. It has 19 dichotomously scored items, based on the DSM-IV criterion.

Author/publisher details

©Richard Bryant 1999
Professor Richard A. Bryant, PhD
School of Psychology
University of New South Wales
Sydney   NSW  2052 
AUSTRALIA

Date

1998 published psychometrics, 1999 copyrighted.

Description

The Acute Stress Disorder Interview (ASDI) is a 19-item, dichotomously scored interview schedule based on criteria from the DSM-IV. Advantages include its brevity; it can be completed in around 5-10 minutes, and can be administered by any appropriately trained person. It includes the five dissociative symptoms specific to ASD (unlike comparable PTSD scales).

Scoring and Psychometrics

Scoring
The ASDI requires dichotomous scoring, and the administration form is fully self explanatory with respect to the scores required in each section to reach ASD diagnosis.

Psychometrics
The ASDI was validated against clinician-based diagnoses of ASD on 65 trauma survivors assessed between 1 and 3 weeks posttrauma (Bryant et.al. 1998). It possessed good internal consistency (r = .90), sensitivity (91%), and specificity (93%). Test-retest reliability was evaluated on 60 trauma survivors between 1 and 3 weeks posttrauma, with a readministration interval of 2 to 7 days. Test-retest reliability of ASDI severity scores was strong (r = .88), and diagnostic agreement for presence (88%) and absence (94%) of ASD diagnosis was high. The ASDI appears to be a useful tool to identify those individuals who suffer ASD and are at risk of long-term posttraumatic stress disorder.

Key/core References

Bryant, R. A., Harvey, A. G., Dang, S. T., & Sackville, T. (1998). Assessing acute stress disorder: Psychometric properties of a structured clinical interview. Psychological Assessment, 10, 215-220.

Further Information

Copyright Richard Bryant 1999

View manual

Although there is no manual to accompany the ASDI the standard 'rules' for administering clinical interviews should be adhered to. The CAPS manual provides excellent instructions for administration.
ISTSS Members: Download CAPS Manual.

View tool

This resource should be used in an ethical and responsible manner and should be used only for the purpose(s) for which it has demonstrable validity. Please observe copyright where indicated and reference it appropriately.

ISTSS Members: Download ASDI form.