Assessment of a new self-rating scale for post-traumatic stress disorder.
Journal Article (Journal Article)
BACKGROUND: In post-traumatic stress disorder (PTSD) there is a need for self-rating scales that are sensitive to treatment effects and have been tested in a broad range of trauma survivors. Separate measures of frequency and severity may also provide an advantage. METHODS: Three hundred and fifty-three men and women completed the Davidson Trauma Scale (DTS), a 17-item scale measuring each DSM-IV symptom of PTSD on 5-point frequency and severity scales. These subjects comprised war veterans, survivors of rape or hurricane and a mixed trauma group participating in a clinical trial. Other scales were included as validity checks as follows: Global ratings, SCL-90-R, Eysenck Scale, Impact of Event Scale and Structured Clinical Interview for DSM-III-R. RESULTS: The scale demonstrated good test-retest reliability (r = 0.86), internal consistency (r = 0.99). One main factor emerged for severity and a smaller one for intrusion. In PTSD diagnosed subjects, and the factor structure more closely resembled the traditional grouping of symptoms. Concurrent validity was obtained against the SCID, with a diagnostic accuracy of 83% at a DTS score of 40. Good convergent and divergent validity was obtained. The DTS showed predictive validity against response to treatment, as well as being sensitive to treatment effects. CONCLUSIONS: The DTS showed good reliability and validity, and offers promised as a scale which is particularly suited to assessing symptom severity, treatment outcome and in screening for the likely diagnosis of PTSD.
- Beckham, Jean Crowell
- Davidson, Jonathan R.T.
- Hertzberg, Michael Andrew
- Roth, Susan
- Tupler, Larry A.
- Davidson, JR; Book, SW; Colket, JT; Tupler, LA; Roth, S; David, D; Hertzberg, M; Mellman, T; Beckham, JC; Smith, RD; Davison, RM; Katz, R; Feldman, ME
- January 1997
Volume / Issue
- 27 / 1
Start / End Page
- 153 - 160
International Standard Serial Number (ISSN)
Digital Object Identifier (DOI)