Psychometric properties of a Swedish translation of the Clinician-Administered PTSD Scale--Diagnostic Version.

Internal consistency (N = 172) and convergent validity (N = 73) of a Swedish translation of the Clinician-Administered PTSD Scale-Diagnostic Version (CAPS-DX) were evaluated with violence victims with posttraumatic stress disorder (PTSD). The CAPS-DX evidenced a promising internal consistency, and significant correlations (Pearson product-moment) with the PTSD Symptom Scale Self-Report version (PSS-SR) and the Impact of Event Scale-Revised (IES-R). Additionally, each subscale of the CAPS-DX (intrusion, avoidance/numbing, and arousal) was significantly correlated with the corresponding subscales of the PSS-SR and the IES-R. Results of the present study are discussed in the context of internal consistencies and convergent validity coefficients of the CAPS with other PTSD symptom measures in previous studies.