Faculty of Psychology, University of Warsaw, Warsaw, Poland.
Eur J Psychotraumatol. 2012;3. doi: 10.3402/ejpt.v3i0.18479. Epub 2012 Aug 9.
Posttraumatic Diagnostic Scale (PDS) is a self-descriptive measure developed to provide information regarding posttraumatic stress disorder (PTSD) diagnosis and symptom severity.
THE AIM OF THIS ARTICLE IS TO REPORT ON THE VALIDATION OF THE POLISH VERSION OF PDS AND TO TEST ITS FACTOR STRUCTURE WITH REFERENCE TO TWO MODELS: an original three-factor model (Reexperiencing, Avoidance, and Arousal) and alternative five-factor model (Reexperiencing, Avoidance, Numbing, Dysphoric Arousal, and Anxious Arousal).
THE VALIDATION PROCEDURE INCLUDED THREE STUDIES CONDUCTED ON SAMPLES OF SEPARATE POPULATIONS: university-level students (n=507), individuals who had experienced various traumas (n=320), and treatment-seeking survivors of motor vehicle accidents (MVA) (n=302). Various other measures of trauma-related psychopathology were administered to participants, as well as the PTSD module of the Structured Clinical Interview (SCID) in the case of MVA patients.
PDS showed high internal consistency and test-retest reliability, good diagnostic agreement with SCID, good sensitivity but relatively low specificity. The satisfactory convergent validity was supported by a large number of significant correlations with other measures of trauma-related psychopathology. Confirmatory factor analysis (CFA) generally confirmed both the three-factor structure and the alternative five-factor structure of the questionnaire.
The results show generally good psychometric properties of the Polish version of PDS.
创伤后诊断量表(PDS)是一种自我描述的测量工具,旨在提供有关创伤后应激障碍(PTSD)诊断和症状严重程度的信息。
本文旨在报告 PDS 波兰语版本的验证情况,并参照两种模型(即原始的三因素模型[再体验、回避和唤醒]和替代的五因素模型[再体验、回避、麻木、烦躁唤醒和焦虑唤醒])检验其因子结构。
验证程序包括在三个不同人群样本中进行的三项研究:大学生(n=507)、经历过各种创伤的个体(n=320)和寻求治疗的机动车事故幸存者(n=302)。研究还向参与者提供了其他与创伤相关的精神病理学的测量方法,以及机动车事故幸存者的 SCID 的 PTSD 模块。
PDS 表现出较高的内部一致性和重测信度、与 SCID 良好的诊断一致性、良好的敏感性但相对较低的特异性。大量与其他创伤相关精神病理学测量方法的显著相关性支持了其良好的收敛有效性。验证性因素分析(CFA)普遍证实了问卷的三因素结构和替代的五因素结构。
研究结果表明,PDS 的波兰语版本具有良好的心理计量学特性。