早期社交媒体使用对在校期间标准化学习成果的纵向影响
早期社交媒体使用对在校期间标准化学习成果的纵向影响
Longitudinal effect of early social media use on standardized learning outcomes during school career
——《自然-人类行为》第10第10期，2026年10月——
【摘要】本研究采用双重差分模型，评估了过早使用社交媒体对7至16岁儿童学业表现的影响。研究构建了一个包含意大利北部5,227名学生的数据集，该数据集整合了关于其数字媒体使用习惯的问卷调查数据，以及他们在意大利语、英语和数学科目上的纵向标准化考试成绩。研究将那些在6、7或8年级便注册个人社交媒体账号的学生，与在9年级或之后才开始使用社交媒体的学生（即“较晚使用者”）进行了匹配分析。研究结果提供了有力证据，表明过早接触社交媒体会对学习成果产生负面影响。针对其他学业指标（因缺乏纵向数据而未纳入主要分析）的补充研究结果，也与本研究的主要发现相一致。此外，研究还发现，这种负面影响在很大程度上源于学生在全天关键时段对智能手机的频繁使用。
[Abstract] This study uses difference-in-differences models to evaluate the impact of early social media use on academic performance among children aged 7–16 years. A dataset comprising 5,227 students from northern Italy was constructed by merging data from a questionnaire on lifetime digital media habits with longitudinal standardized test scores in Italian, English and mathematics. Participants who created a personal social media account in 6th, 7th or 8th grade were separately matched with late adopters who initiated their first social media account in the 9th grade or later. The findings provide compelling evidence that early engagement with social media adversely affects learning outcomes. Additional findings on the effects of early social media use on other academic outcomes for which we do not have longitudinal data are in line with our main findings. We also find supporting evidence that a substantial part of this negative effect is mediated by students’ smartphone pervasiveness in key moments of the day.
论文原文：Marco Gui, Chiara Respi, Giovanni Abbiati, et al. (2026). Longitudinal effect of early social media use on standardized learning outcomes during school career. Nature Human Behaviour, Volume 10, Issue 10, Pages 1953–1965. October 2026.
https://doi.org/10.1038/s41562-026-02522-4
（翻译兼责任编辑：MARY）
（需要英文原文的朋友，请联系微信：millerdeng95或iacmsp）
