Assessing Posttraumatic Stress Disorder With or Without Reference to a Single, Worst Traumatic Event: Examining Differences in Factor Structure
Assessing Posttraumatic Stress Disorder With or Without Reference to a Single, Worst Traumatic Event: Examining Differences in Factor Structure
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DOI：
10.1037/a0016677
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发表时间：
2009-12-01
影响因子：
3.6
通讯作者：
Jacobs, Gerard A.
中科院分区：
文献类型：
--
作者：
Elhai, Jon D.;Engdahl, Ryan M.;Jacobs, Gerard A.
作者检验了一种方法操纵对创伤后应激障碍（PTSD）检查表的因素结构的影响：具体地说，在评价PTSD症状时，被调查者是否被指示参考一个最严重的创伤事件。非临床、创伤暴露的参与者被随机分配到2种PTSD评估条件中的1种：将PTSD症状与他们最严重的创伤（创伤特异性组，n = 218）或他们总体的创伤史（创伤-一般组，n = 234）联系起来。第三组非创伤暴露的参与者（n = 464）对任何压力事件的创伤后应激障碍症状进行了全面评估。通过验证性因子分析，作者发现d.w. King、g.a. Leskin、l.a. King和f.w. Weathers（1998；分离努力回避和情绪麻木）提出的四因素创伤后应激障碍模型最适合一般创伤和非创伤暴露的参与者。由L. J. Simms， D. Watson和B. N. Doebbeling（2002；强调一般焦虑因素）提出的四因素PTSD模型证明了最适合创伤特异性参与者的模型。测量不变性检验结果显示，非创伤暴露组与创伤暴露组在因子结构参数上存在差异，而创伤暴露组与创伤暴露组之间差异不显著。
The authors examined the effects of a methodological manipulation on the Posttraumatic Stress Disorder (PTSD) Checklist's factor structure: specifically, whether respondents were instructed to reference a single worst traumatic event when rating PTSD symptoms. Nonclinical, trauma-exposed participants were randomly assigned to I of 2 PTSD assessment conditions: referencing PTSD symptoms to their worst trauma (trauma-specific group, n = 218) or to their overall trauma history in general (trauma-general group, n = 234). A 3rd group of non-trauma-exposed participants (n = 464) rated PTSD symptoms globally from any stressful event. Using confirmatory factor analysis, the authors show that the 4-factor PTSD model proposed by D. W. King, G. A. Leskin, L. A. King, and F. W. Weathers (1998; separating effortful avoidance and emotional numbing) demonstrated the best model fit for trauma-general and non-trauma-exposed participants. The 4-factor PTSD model proposed by L. J. Simms, D. Watson, and B. N. Doebbeling (2002; emphasizing a general dysphoria factor) demonstrated the best model fit for trauma-specific participants. Measurement invariance testing revealed that non-trauma-exposed participants were different from both trauma-exposed groups on factor structure parameters, but trauma groups were not substantially different from each other.