This study investigates the influence of structural transitions to high school on adolescents’ friendship networks and academic grades from 6th through 12th grade, in a direct comparison of students who do and do not transition. We utilize data from 14,462 youth in 51 networks from 26 districts (Promoting School–Community Partnerships to Enhance Resilience). Results underscore the challenging nature of compulsory school changes. Students that structurally transition to high school between eighth and ninth grade, as compared with those who do not, receive fewer friendship nominations following the move and are more likely to become isolates, according to a three-level Poisson model. Students who transition also report significantly lower odds of obtaining high grades after the shift, and these penalties persist throughout high school. Our findings highlight the social and academic difficulties associated with this particular normative adolescent life transition and point to a disruption in social network ties as part of the problem.

中文翻译：

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落后：青年友谊和年级的高中过渡的挥霍成本

这项研究调查了从中学到六年级到十二年级之间青少年过渡的网络对青少年友谊网络和学术成绩的影响，并直接比较了进行和不进行过渡的学生。我们利用来自26个地区的51个网络中的14462名青年的数据（促进学校与社区的伙伴关系以增强韧性）。结果强调了义务教育变革的挑战性。根据三级Poisson模型，与没有毕业的学生相比，从结构上过渡到八至九年级的学生，获得的友谊提名减少，并且更有可能成为孤立人。过渡时期的学生报告说在轮班之后获得高分的几率大大降低，并且这些惩罚在整个高中都持续存在。