青少年创伤后应激障碍和创伤后成长对亲社会行为的影响:生命意义的中介作用

采用创伤暴露程度问卷、创伤后应激障碍症状核查表、创伤后成长问卷、生命意义感量表和亲社会行为问卷，在汶川地震8.5年后对地震极重灾区的1182名中学生进行调查，考察创伤后应激障碍（PTSD）和创伤后成长（PTG）对亲社会行为的影响，并检验存在意义感和寻求意义感在其中的中介作用。结果发现：PTSD可以直接负向预测亲社会行为，也可以通过降低存在意义感进而负向预测亲社会行为，还可以通过提高寻求意义感进而正向预测亲社会行为；PTG可以直接正向预测亲社会行为，也可以分别通过提高存在意义感和寻求意义感进而正向预测亲社会行为。

Mediating Roles of Meaning in Life in the Relationship between Posttraumatic Stress Disorder,Posttraumatic Growth and Prosocial Behavior among Adolescents after the Wenchuan Earthquake

To examine the mediating roles of meaning in life in the relationship between posttraumatic stress disorder (PTSD), posttraumatic growth (PTG) and prosocial behavior, 1082 adolescents were assessed by adopting traumatic exposure questionnaire, the revised child PTSD symptom scale, posttraumatic growth inventory, meaning in life questionnaire and prosocial behavior questionnaire at eight and a half years after Wenchuan earthquake. The mediating roles would be assessed by using structural equation model, wherein the traumatic exposure would be controlled because its importance. The results found that after controlled traumatic exposure,both the presence of meaning and search for meaning mediated partly the relationship between PTSD, PTG and prosocial behavior. On the one hand, PTSD has a directly and negative effect on prosocial behavior and PTG has a directly and positive effect on prosocial behavior. On the other hand, PTSD could affect prosocial behavior negatively through presence of meaning while had a positive effect on prosocial behavior through search for meaning. Additionally, PTG has indirect and positive effect on prosocial behavior by presence of meaning and search for meaning.