INTRODUCTION This study examined the effect of popularity levels on friendship selection and friends' influence on popularity levels in early and mid-adolescence. METHODS Participants were 4205 Spanish adolescents (Mage  = 13.1 years at Wave 1; 48% girls) belonging to 160 classrooms in two waves. Adolescents were asked about their friendships and the popularity of their classmates. RESULTS Longitudinal social network analyses showed that adolescents preferred similarly popular peers as friends. High popular classmates were more attractive as friends, particularly in early adolescence. Popular adolescents were more selective in their friendship nominations and adolescents with popular friends became more popular over time. These two effects were only significant in mid-adolescents, although comparative analyses showed a similar tendency at both age groups. CONCLUSIONS This study highlights the importance of popularity levels in adolescents' friendship selection and suggests that popularity, at the individual and group level, plays a relevant role in social development. Implications adapted to the different selection and influence processes in early and mid-adolescence are discussed.

中文翻译：

---

青少年早期和中期流行的友谊选择和影响过程。

引言 本研究考察了在青春期早期和中期，受欢迎程度对友谊选择的影响以及朋友对受欢迎程度的影响。方法 参与者是 4205 名西班牙青少年（第一波法师 = 13.1 岁；48% 的女孩），分两波分属于 160 个教室。青少年被问及他们的友谊和同学的受欢迎程度。结果 纵向社交网络分析表明，青少年更喜欢同样受欢迎的同龄人作为朋友。高人气的同学作为朋友更有吸引力，尤其是在青春期早期。受欢迎的青少年在他们的友谊提名中更具选择性，随着时间的推移，有受欢迎的朋友的青少年变得越来越受欢迎。这两种影响只在青少年中期显着，尽管比较分析显示两个年龄组的趋势相似。结论 本研究强调了受欢迎程度在青少年友谊选择中的重要性，并表明在个人和群体层面，受欢迎程度在社会发展中发挥着相关作用。讨论了适应青春期早期和中期的不同选择和影响过程的影响。