Confirmatory factor analysis of posttraumatic stress symptoms assessed by the Impact of Event Scale-Revised in Chinese earthquake victims: examining factor structure and its stability across sex.
The current study investigated the factor structure of posttraumatic stress symptoms assessed by the Impact Event Scale-Revised (IES-R) in a large sample of individuals from China who recently experienced a destructive earthquake. The results of the confirmatory factor analysis indicated that a four-factor structure (intrusion, avoidance-numbing, hyperarousal, and sleep disturbance) emerged as the model best fit in total sample, female and male subsamples, respectively. Moreover, multiple-group confirmatory factor analysis further demonstrated that the four-factor model was quite stable across sex. Implication and limitations for the results are discussed.
Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, 4A Datun Road, Beijing 100101, China.
Li
L
Wang
Jianxin
J
Zhang
Zhanbiao
Z
Shi
Mingjie
M
Zhou
Duan
D
Huang
Ping
P
Liu
D002681:China; D004190:Disasters; D055866:Earthquakes; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008016:Life Change Events; D008297:Male; D011569:Psychiatric Status Rating Scales; D012737:Sex Factors; D013313:Stress Disorders, Post-Traumatic / Q000175:diagnosis* / Q000523:psychology; D011795:Surveys and Questionnaires