This study examines the role of language environment (number of conversational turns) in the development of socioemotional competencies between 18 and 30 months. The language environment of 43 infants and their social-emotional competencies were measured at 18 months and again at 30 months. Multiple regressions showed a significant contribution of turns at 18 months on socioemotional competencies at 30 months, controlling for their initial levels, child vocalizations, maternal warmth, and social risk. Cross-lagged analysis revealed that the direction of the longitudinal relation between turns and emotional competencies is more likely to go from turns to socioemotional development than the other way around. Implications for theory and research are discussed.

中文翻译：

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幼儿期的语言和社会情感发展：会话转向的作用

本研究考察了语言环境（会话次数）在 18 到 30 个月之间社会情感能力发展中的作用。43 名婴儿的语言环境及其社会情感能力在 18 个月和 30 个月时再次测量。多元回归显示 18 个月时的轮流对 30 个月时的社会情感能力有显着贡献，控制了它们的初始水平、儿童发声、母亲的温暖和社会风险。交叉滞后分析表明，转向与情绪能力之间的纵向关系的方向更有可能从转向转向社会情感发展，而不是相反。讨论了对理论和研究的影响。