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Receiver operating characteristic (ROC) curve depicting the sensitivity and specificity of the brief version of the PDS in identifying individuals with PTSD, as determined through the CAPS (DSM-IV) interview. Area under the curve (AUC) was .95 (3-item version) and .94 (2-item version). PDS, Posttraumatic Diagnostic Scale; PTSD, posttraumatic stress disorder; CAPS, Clinician-Administered PTSD Scale; DSM-IV, Diagnostic and Statistical Manual of Mental Disorders, 4th ed.
