This study assessed the factor structure of the Impact of Event Scale (IES), a measure of intrusion and avoidance, using a sample of World War II and Korean War veterans who had experienced combat 40-50 years earlier. A series of 3 confirmatory factor analytic models were specified and estimated using LISREL 8.3. Model 1 specified a 1-factor model. Model 2 specified a correlated 2-factor model. Model 3 specified a 2-factor model with additional cross-factor loadings for Items 2 and 12. Model 3 was found to fit the data. In addition, this model was found to be a better explanation of the data than the other models. Also in addition, the correlations between the Intrusion and Avoidance factors and the 4 subscales of the 28-item General Health Questionnaire were examined to determine the distinctiveness of the two IES factors.
|Publication status||Published - Dec 2000|
Shevlin, M., Hunt, N., & Robbins, I. (2000). A confirmatory factor analysis of the impact of event scale using a sample of World War II and Korean War veterans. Psychological Assessment, 12(4), 414-417. http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V9F-40MT42J-K&_user=126978&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000010438&_version=1&_urlVersion=0&_userid=126978&md5=c9324f40a109a41a4e5adadcc9666d44