This clinician-administered, structured interview is designed to assess posttraumatic stress disorder symptomatology and related functional impact. The Clinician-Administered PTSD Scale (CAPS) supports systematic evaluation of symptom frequency and severity using standardized probes and anchored ratings. It can be used to support diagnostic clarification and to characterize symptom change over time.
Administration typically involves reviewing each symptom domain and rating both intensity and occurrence, with attention to associated distress and impairment in daily functioning. The measure includes 34 items and generally takes about 7 minutes to complete. The Clinician-Administered PTSD Scale (CAPS) was developed by Frank W. Weathers.