Language is vital for social interaction, leading some to suggest early linguistic ability paves the way for good adolescent mental health. The relation between age-5 vocabulary and adolescent internalizing symptoms was examined in two U.K. birth cohorts that are nationally representative in terms of sex, ethnicity, and socioeconomic status: the 1970 British Cohort Study (BCS; N = 11,640) and the Millennium Cohort Study (MCS born ~2001; N = 14,754). In the BCS, no relation between receptive vocabulary and age-16 self-reported symptoms was observed (β = 0.00 [−0.03; 0.03]). In the MCS, better expressive vocabulary was associated with more age-14 self-reported symptoms (β = 0.05 [0.02; 0.07]). The direction of this effect was reversed for parent-reported symptoms. All effect sizes were small. The relation between childhood vocabulary and internalizing symptoms varies by generation and reporter.

中文翻译：

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早期儿童语言是否可以预测青春期的内化症状？对相隔30年出生的两个出生队列的调查

语言对于社交互动至关重要，因此一些人认为早期的语言能力为良好的青少年心理健康铺平了道路。在性别、种族和社会经济地位方面具有全国代表性的两个英国出生队列中检查了 5 岁词汇与青少年内化症状之间的关系：1970 年英国队列研究（BCS；N  = 11,640）和千年队列研究（MCS 出生于 2001 年左右；N  = 14,754）。在 BCS 中，未观察到接受词汇与 16 岁自我报告症状之间的关系（β = 0.00 [-0.03; 0.03]）。在 MCS 中，更好的表达词汇与更多14 岁自我报告的症状（β = 0.05 [0.02; 0.07]）。对于父母报告的症状，这种影响的方向相反。所有效应量都很小。儿童词汇与内化症状之间的关系因世代和报告者而异。