Cyberbullying perpetration (CP) and victimization (CV) are prevalent issues in adolescent development. However, previous meta-analyses focused only on cross-sectional findings. The present study aims to meta-analytically summarize 56 longitudinal studies on CP, CV, and related factors in children and adolescents. Forty meta-analyses on CP and CV as both predictors and outcomes of person-related, Internet activity-related, and contextual factors were performed. Additional moderator analyses took into account study design, sample population, and quality of the studies. Results highlight reciprocal longitudinal effects among CP, CV, and both traditional bullying and victimization: CP causes externalizing problem behaviors over time, whereas CV constitutes a risk factor of internalizing problems, such as depression and anxiety. Conversely, behavioral problems and increased Internet use predict involvement in CP, while depression, anxiety, and Internet use also predict CV over time. Further longitudinal research is needed to provide empirical evidence on understudied concepts.

中文翻译：

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青少年的网络欺凌和受害：纵向研究的荟萃分析

网络欺凌行为（CP）和受害行为（CV）是青少年发展中的普遍问题。但是，以前的荟萃分析仅关注横截面发现。本研究旨在对儿童和青少年的CP，CV和相关因素进行56项纵向研究的荟萃分析总结。进行了40次关于CP和CV的荟萃分析，将其作为与人相关，与互联网活动相关以及与环境相关的因素的预测指标和结果。其他主持人分析考虑了研究设计，样本总数和研究质量。结果突出了CP，CV以及传统的欺凌和受害行为之间的相互纵向影响：CP随时间推移导致外部化问题行为，而CV构成内部化问题的风险因素，例如抑郁和焦虑。反过来，行为问题和互联网使用的增加预示着CP的参与，而抑郁，焦虑和互联网使用也预示了随着时间的推移简历。需要进行进一步的纵向研究以提供关于未充分研究概念的经验证据。