创伤后成长量表在经历汶川地震初中生中的修订与初步应用

目的:在经历汶川地震的初中生群体中修订创伤后成长量表(Post-traumatic Growth Inventory,PTGI),并考察其信效度。方法:采用方便取样,在重庆市2个一般灾区的2所初中共抽取2个样本,用创伤后成长量表、儿童抑郁量表(Children's Depression Inventory,CDI)、儿童版事件影响量表(Children's Revised Impact of Event Scale,CRIES)进行施测。用样本1(N=294)进行探索性因素分析,样本2(N=625)进行验证性因素分析。结果:(1)探索性因素分析获得3因素模型(人际关系、新可能性、个人力量),各条目在所属因子的载荷为0.41～0.77,3因子可解释总变异为47.2%。验证性因素分析发现拟合指标较好,IFI=0.990,CFI=0.990,RMSEA=0.051,χ2/df=3.082。将3因素模型和原5因素模型比较,发现前者指标优于后者(5因素:IFI=0.987,CFI=0.981,RMSEA=0.053,χ2/df=3.317)。(2)创伤后成长量表修订版内部一致性信度在0.663～0.851之间。(3)PTGI总分及各分量表分与CRIES侵袭量表得分呈正相关(r=0.19～0.27,P0.01),与抑郁量表得分呈负相关(r=-0.21～-0.29,P0.01)。结论:创伤后成长量表修订版具有较好的信、效度,可用于同龄人群创伤后成长研究。

Revision and preliminary application of Chinese version of Post-traumatic Growth Inventory in adolescents experienced the Wenchuan earthquake

Objective: To revise the Post-traumatic Growth Inventory (PTGI) in a sample of adolescents who experienced the Wenchuan earthquake. Method: The Chinese version of PTGI together with the Children's De-pression Inventory (CDI) and Children's Revised Impact of Event Scale (CRIES) were administrated among 2 samples of the middle school students from two middle schools in Chongqing city. Result: A three-factor model of PTGI (interpersonal relationship, new possibility, and personal strength) was found in the first sample by explor-atory factor analysis and was confirmed in the second sample by confirmatory analysis. The main parameters were as follows: IFI=0.990, CFI=0.990, RMSEA =0.051, and X~2/df=3.082. The original five-factor model (IFI=0.987, CFI=0.981, RMSEA=0.053, and X~2/df=3.317) was also tested by confirmatory analysis and was found inferior to the three-factor model. The reliability of the revised scale was acceptable, with Crunbach's a coeffi-cients ranging from 0.66～0.85. The total score of PTGI and the score of sub-scales were moderately correlated with the intrusion scale in CRIES, with coefficients ranging from 0.19 to 0.27. The total score of PTGI and the score of sub-scales were negatively correlated with CDI, with coefficients ranging from-0.21 to-0.29. Conclusion: The newly revised adolescent version of PTGI demonstrates good structure validity and acceptable reliability. It may be a potentially good instrument to measure posttraumatic growth among Chinese adolescents.