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Comparison of the PTSD Symptom Scale-Interview Version and the Clinician-Administered PTSD Scale
Abstract
The Clinician-Administered PTSD Scale (CAPS) is one of the most frequently used measures of posttraumatic stress disorder (PTSD). It has been shown to be a reliable and valid measure, although its psychometric properties in nonveteran populations are not well known. One problem with the CAPS is its long assessment time. The PTSD Symptom Scale--Interview Version (PSS-I) is an alternative measure of PTSD severity, requiring less assessment time than the CAPS. Preliminary studies indicate that the PSS-I is reliable and valid in civilian trauma survivors. In the present study we compared the psychometric properties of the CAPS and the PSS-I in a sample of 64 civilian trauma survivors with and without PTSD. Participants were administered the CAPS, the PSS-I, and the Structured Clinical Interview for DSM-IV (SCID) by separate interviewers, and their responses were videotaped and rated by independent clinicians. Results indicated that the CAPS and the PSS-I showed high internal consistency, with no differences between the two measures. Interrater reliability was also high for both measures, with the PSS-I yielding a slightly higher coefficient. The CAPS and the PSS-I correlated strongly with each other and with the SCID. Although the CAPS had slightly higher specificity and the PSS-I had slightly higher sensitivity to PTSD, overall the CAPS and the PSS-I performed about equally well. These results suggest that the PSS-I can be used instead of the CAPS in the assessment of PTSD, thus…
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The PSS-I has good convergent validity, test-retest reliability, and inter-rater reliability.
“The PSS-I has good convergent validity, test-retest reliability, and inter-rater reliability (Foa, Cashman, Jaycox, & Perry, 1997; Foa & Tolin, 2000).”
From Does change in distress matter? Mechanisms of change in prolonged exposure for PTSD (2014) · cites this paper as Foa & Tolin, 2000
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References 16 · Cited by 507
Research works printed but not linked: 12
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Metadata
- Authors
- Foa, E. B., & Tolin, D. F.
- Affiliations
- University of Pennsylvania (US)
- Venue
- Journal of Traumatic Stress
- Publisher
- Wiley
- Published
- 2000-04
- Volume
- 13
- Issue
- 2
- Pages
- 181-191
- ISSN
- 0894-9867 (ISSN-L)
- 1573-6598
- OpenAlex
- W2058647245
- Cited by
- 507
- References
- 16
- Citations by year
- 2026: 1 · 2025: 5 · 2024: 9 · 2023: 16 · 2022: 19 · 2021: 21 · 2020: 23 · 2019: 31 · 2018: 24 · 2017: 34 · 2016: 37 · 2015: 34 · 2014: 28 · 2013: 36 · 2012: 39
- FWCI
- 4.46
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Traumatic Stress (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Social Sciences › Psychology › Clinical Psychology › Posttraumatic Stress Disorder Research
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
- Health Sciences › Medicine › Clinical Neurology › Traumatic Brain Injury Research
- Keywords
- post-traumatic stress disorder, Clinician-Administered PTSD Scale, PTSD assessment, psychometric properties, inter-rater reliability, internal consistency, diagnostic accuracy, assessment time
- MeSH terms
- Adult, Female, Humans, Interview, Psychological, Male, Psychometrics, Stress Disorders, Post-Traumatic, Time Factors, Philadelphia, Reproducibility of Results, Observer Variation
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