Children acquire language embedded within the rich social context of interaction. This paper reports on a longitudinal study investigating the developmental relationship between conversational turn‐taking and vocabulary growth in English‐acquiring children (N = 122) followed between 9 and 24 months. Daylong audio recordings obtained every 3 months provided several indices of the language environment, including the number of adult words children heard in their environment and their number of conversational turns. Vocabulary was measured independently via parental report. Growth curve analyses revealed a bidirectional relationship between conversational turns and vocabulary growth, controlling for the amount of words in children’s environments. The results are consistent with theoretical approaches that identify social interaction as a core component of early language acquisition.

中文翻译：

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早期语言发展中会话转向与词汇增长之间的纵向关系

孩子们获得了嵌入在丰富的社交互动环境中的语言。本文报道了一项纵向研究，该研究调查了英语习得儿童（N = 122），然后在9到24个月之间。每3个月获得的全天录音记录提供了语言环境的多个指标，包括儿童在其环境中听到的成人单词数量以及他们的会话轮数。词汇量是通过家长报告独立测量的。成长曲线分析揭示了会话转向和词汇增长之间的双向关系，控制了儿童环境中的单词数量。结果与理论方法一致，该理论方法将社会互动识别为早期语言习得的核心组成部分。