地震后青少年创伤后应激障碍的潜在结构分析
Assessing the Latent Structure of PTSD among Chinese Adolescent after Earthquake

为考察地震后青少年创伤后应激障碍（PTSD）的潜在症状结构，本研究采用儿童创伤后应激障碍症状量表和儿童抑郁量表，对汶川地震一年后的746名中学生进行调查。利用验证性因素分析对竞争模型进行比较，结果发现包括侵入性、回避性、麻木性、精神痛苦性唤起和焦虑性唤起等5个症状的PTSD精神痛苦性唤起模型显著优于DSM-IV的PTSD模型、4维情感麻木模型和4维精神痛苦模型。效度分析的结果发现，PTSD精神痛苦性唤起模型具有良好的外部区分效度。所有结果均表明PTSD精神痛苦性唤起模型在汶川地震后青少年群体中具有良好的适用性，可以作为判定震后青少年PTSD症状的有效标准。
To examine the underlying substructure of posttraumatic stress disorders (PTSD) among adolescent samples after earthquake,this study used confirmatory factor analysis alternative model approach to investigate 746 adolescents one year after the Wenchuan earthquake.Participants completed the Children PTSD Checklist and the depression scale for children.The results found that 5-factors Dysphoric Arousal model entailing experiencing,avoidance,emotional numbing,dysphoria arousal,and anxious arousal,was significantly superior to DSM-IV PTSD model,4-factor emotional numbing model,and 4-factor dysphoria model.Moreover,the findings also suggested that 5-factors Dysphoric Arousal model has good external discriminant validity.These results indicated that 5-factors Dysphoric Arousal PTSD model was better applicable to adolescent following earthquake,and considered validated criteria for check adolescents'PTSD symptoms.