Precursors and consequences of bullying have been widely explored, but much remains unclear about the association of moral and motivational factors. This study examined longitudinal associations between need for popularity, moral disengagement, and bullying perpetration. A total of 3017 participants, aged 11 to 16 years in wave 1 (49% girls; M_age = 13.15, SD = 1.09), were surveyed across four waves with six-month intervals. At the between-person level, cross-lagged modeling revealed a positive bidirectional association between moral disengagement and need for popularity; bullying perpetration was predicted by both need for popularity and moral disengagement. From the within-person level, random intercept cross-lagged analyses revealed that need for popularity predicted both moral disengagement and bullying perpetration. The results highlight the interplay between motivational and moral mechanisms that underlies bullying behavior.

欺凌的前兆和后果已被广泛探讨，但关于道德和动机因素的关联仍不清楚。这项研究考察了受欢迎程度、道德脱离接触和欺凌行为之间的纵向关联。第 1 波共有 3017 名参与者，年龄在 11 至 16 岁之间（49% 的女孩；M_年龄 = 13.15，SD = 1.09），以六个月为间隔对四波进行了调查。在人与人之间，交叉滞后模型揭示了道德脱离接触和受欢迎程度之间的正向双向关联；欺凌行为是出于对受欢迎程度和道德脱离接触的需求的预测。从个人内部水平来看，随机截距交叉滞后分析表明，受欢迎程度的需求预测了道德脱离和欺凌行为。结果突出了欺凌行为背后的动机和道德机制之间的相互作用。