网络欺负已成为影响儿童青少年健康发展的严重问题行为之一，但研究者对网络欺负的基本特点尚未达成共识，我国也缺少基于当今中国文化和学生特点的网络欺负的测量工具。而且，目前我国中小学生网络欺负的研究多为横断设计或短期追踪，不能全面揭示中小学生网络欺负的纵向发展变化。此外，目前国内也尚未有研究系统考察中小学生网络欺负的影响因素及其心理机制。基于以上过往研究存在的不足，本项目依次开展如下4部分研究：（1）中小学生网络欺负的基本特点与量表编制；（2）通过7波段、大样本的长时纵向追踪研究考察中小学生网络欺负的纵向发展变化；（3）通过纵向研究构建中小学生网络欺负影响因素模型，揭示网络欺负产生的心理机制；（4）构建适用于我国中小学生的网络欺负风险评估工具。预期本项目的研究成果能够为中小学生网络欺负的风险评估和预防、干预提供实证支持。

Cyberbullying has become one of the serious behavioral problems affecting the positive development of children and adolescents. However, researchers have not reached a consensus on the central characteristics of cyberbullying. Besides, there is also a lack of valid measurement for cyberbullying grounded in the Chinese culture and Chinese students’ characteristics. Moreover, the previous research on cyberbullying of Chinese elementary and secondary students was mostly cross-sectional or short-term longitudinal design, which hinders us fully understanding the longitudinal development of cyberbullying of elementary and secondary students. Furthermore, few studies have systematically examining the influencing factors and psychological mechanisms of cyberbullying among elementary and secondary school students. Based on the limitations of the previous research, the current project will be conducted by the following four parts of research: (1) Identifying the central characteristics of cyberbullying and developing the cyberbullying scale for Chinese elementary and secondary school students; (2) Investigating the longitudinal development of cyberbullying among elementary and secondary school students through a long-term longitudinal design across 7-wave with large samples; (3) Establishing a predictive model of cyberbullying and exploring the possible psychological mechanisms between influencing factors and cyberbullying among elementary and secondary school students by longitudinal design; (4) Developing a risk assessment tool for identifying risk groups who may engage in cyberbullying among Chinese elementary and secondary school students. It is expected that the findings of this project would provide empirical supports for the risk assessment, identification of risk groups, prevention and intervention of cyberbullying among elementary and secondary school students.