Factor structure of the Impact of Event Scale-Revised in two different Peruvian samples.
Factor structure of the Impact of Event Scale-Revised in two different Peruvian samples.
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DOI：
10.1002/da.20430
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发表时间：
2009-01-01
影响因子：
7.4
通讯作者：
Corveleyn, Jozef
中科院分区：
文献类型：
--
作者：
Gargurevich, Rafael;Luyten, Patrick;Corveleyn, Jozef
背景：本文研究了秘鲁两个样本，即火灾幸存者样本(N=174)和大学生样本(N=562)的创伤后应激障碍症状影响量表(IES-R)的因子结构。方法：首先，采用验证性因素分析比较两个样本中IES-R评定的创伤后应激障碍症状的9种不同模式。在两个样本中拟合最好的模型有四个相关因素，即侵扰、回避、过度觉醒和睡眠障碍。第二，用多组验证性因素分析比较两个样本IES-R的因子不变程度。结果与结论：两个样本之间的结果几乎没有差异。最后，结果支持了IES-R的内部一致性，以及IES-R在秘鲁的同时和收敛效度。
BACKGROUND: This article studied the factor structure of the Impact of Event Scale-Revised (IES-R) in two samples in Peru, i.e., a sample of survivors of a fire (N=174) and a university student sample (N=562).METHODS: First, confirmatory factor analysis was used to compare nine different models of posttraumatic stress disorder symptoms as evaluated by the IES-R in both of the samples separately. The model with the best fit in both samples had four correlated factors, i.e., Intrusion, Avoidance, Hyperarousal and Sleep Disturbance. Second, the degree of factorial invariance of the IES-R was compared in both the samples using multiple group confirmatory factor analysis.RESULTS AND CONCLUSIONS: The results showed almost no differences between both samples. Finally, the results supported the internal consistency, as well as the concurrent and convergent validity of the IES-R in Peru.