Elklit Ask, Shevlin Mark
University of Aarhus, Denmark.
Br J Clin Psychol. 2007 Sep;46(Pt 3):299-313. doi: 10.1348/014466506X171540.
This study aimed to examine the structure of self-reported post-traumatic stress disorder (PTSD) symptoms.
Based on previous factor analytic findings and the DSM-IV formulation, six confirmatory factor models were specified and estimated that reflected different symptom clusters.
The analyses were based on responses from 1116 participants who had suffered whiplash injuries and screened for full or subclinical PTSD using the Harvard Trauma Questionnaire.
A correlated four-factor model with re-experiencing, avoidance, dysphoria and arousal factors fitted the data very well. Correlations with criteria measures showed that these factors were associated with other trauma related variables in a theoretically predictable way and showed evidence of unique predictive utility.
These results concur with previous research findings using different trauma populations but do not reflect the current DSM-IV symptom groupings.
本研究旨在探讨自我报告的创伤后应激障碍（PTSD）症状的结构。
基于先前的因素分析结果和《精神疾病诊断与统计手册第四版》（DSM-IV）的表述，指定并估计了六个反映不同症状群的验证性因素模型。
分析基于1116名遭受鞭打损伤的参与者的回答，这些参与者使用哈佛创伤问卷进行了全面或亚临床PTSD筛查。
一个具有重新体验、回避、烦躁和唤醒因素的相关四因素模型与数据拟合得非常好。与标准测量的相关性表明，这些因素以理论上可预测的方式与其他创伤相关变量相关，并显示出独特的预测效用的证据。
这些结果与先前使用不同创伤人群的研究结果一致，但并不反映当前的DSM-IV症状分组。
