AI Article Synopsis
- - The study aimed to create and validate new symptom validity indices for the PTSD Checklist for DSM-5 (PCL-5), addressing a gap in tools for assessing overreported PTSD symptoms in patients, especially veterans.
- - Researchers tested three indices (PSS, PES, PRI) using a sample of 210 veteran patients, comparing their responses against established validity measures to categorize them as valid or invalid responders.
- - Results showed promising accuracy for the PSS and PES indices, with the PES achieving the highest sensitivity when focused on patients with strong evidence of invalidity, indicating these new indices could be useful for better PTSD assessment.
Article Abstract
Introduction: There are very few symptom validity indices directly examining overreported posttraumatic stress disorder (PTSD) symptomatology, and, until recently, there were no symptom validity indices embedded within the PTSD Checklist for the DSM-5 (PCL-5), which is one of the most commonly used PTSD measures. Given this, the current study sought to develop and cross-validate symptom validity indices for the PCL-5.
Method: Multiple criterion groups comprised of Veteran patients were utilized ( = 210). Patients were determined to be valid or invalid responders based on Personality Asessment Inventory symptom validity indices. Three PCL-5 symptom validity indices were then examined: the PCL-5 Symptom Severity scale (PSS), the PCL-5 Extreme Symptom scale (PES), and the PCL-5 Rare Items scale (PRI).
Results: Area under the curve statistics ranged from .78 to .85. The PSS and PES both met classification accuracy statistic goals, with the PES achieving the highest sensitivity rate (.39) when maintaining specificity at .90 or above across all criterion groups. When an ad hoc analysis was performed, which included only patients with exceptionally strong evidence of invalidity, sensitivity rates increased to .60 for the PES while maintaining specificity at .90.
Conclusions: These findings provide preliminary support for new PTSD symptom validity indices embedded within one of the most frequently used PTSD measures.
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| http://dx.doi.org/10.1080/13803395.2024.2314728 | DOI Listing |
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