한국판 외상 후 스트레스 진단 척도의 신뢰도 및 타당도 연구 = Psychometric Qualities of the Korean Version of the Posttraumatic Diagnosis Scale(PDS-K)

다국어 초록 (Multilingual Abstract)

The Posttraumatic Diagnostic Scale (PDS; Foa et al., 1997) was designed to derive information both about a possible Psottraumatic Stress Disorder (PTSD) diagnosis defined by Diagnostic and Statistical Manual Disorders(4th ed.; American Psychiatric Association, 1994; DSM-Ⅳ) and the severity of the PTSD symptoms. The purpose of this study was to develop a Korean version of the PDS (PDS-K) while maintaining its original basic structure and to evaluate the reliability and validity of the PDS-K for the Korean population. The 47 participants examined in this study included 21 with PTSD (PTSD group), and 26 without PTSD (control group). Both groups were made up of those who had experienced a wide variety of traumatic events. Participants completed the PTSD module of the Structured Clinical Interview (SCID; Spitzer et al., 1990), the PDS-K, the Beck Depression Inventory-Ⅱ, the Beck Anxiety Inventory, and the Korean version of Impact of Event Scale-Revised (IES-R-K; Eun et al., 2005). The PDS-K exhibited good internal consistency (Cronbach's alpha= .90) and test-retest reliability (r = .81). Further, the PDS-K demonstrated satisfactory convergent validity which was supported by its significant positive correlations with other measures of trauma related psychopathology (r = .61∼.70). The highest diagnostic efficiency of the PDS-K was at a total score of 20, with sensitivity and specificity of 1.00 and 0.84, respectively. These findings suggest that the PDS-K possesses appropriate psychometric properties and is a valid and reliable tool for assessing the frequency and severity of PTSD symptoms.

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