This study examines the proposition that friend characteristics forecast changes in perceptions of relationship negativity. The participants (ages 9 to 11) were 240 pre- and young adolescents (114 boys, 126 girls) involved in 120 same-sex best friendships that were stable across a period of 4 to 12 weeks. Each friend described perceptions of negativity in their relationship. Prosocial behavior and relational aggression were assessed via peer nominations. Dyadic analyses indicated that one friend’s prosocial behavior and relational aggression uniquely forecast changes in the other friend’s perception of negativity in the relationship. Greater initial levels of prosocial behavior anticipated decreases in perceived negativity, whereas greater initial levels of relational aggression forecast increases in perceived negativity.

中文翻译：

---

友善和刻薄：朋友特征预示着对关系消极看法的变化

本研究检验了朋友特征预测关系消极性感知变化的命题。参与者（9 至 11 岁）是 240 名青少年（114 名男孩，126 名女孩），他们在 4 至 12 周的时间内保持稳定的 120 次同性最佳友谊。每个朋友都描述了对他们关系中消极情绪的看法。亲社会行为和关系攻击通过同行提名进行评估。二元分析表明，一个朋友的亲社会行为和关系攻击性独特地预测了另一个朋友对关系中消极情绪的看法的变化。更大的亲社会行为初始水平预计会减少感知的消极性，而更大的关系攻击初始水平预测会增加感知的消极性。