Department of Special Education and Rehabilitation, Utah State University, Logan.
Department of Kinesiology and Health Science, Utah State University, Logan.
Lang Speech Hear Serv Sch. 2020 Jul 15;51(3):706-719. doi: 10.1044/2019_LSHSS-19-00066. Epub 2020 Mar 30.
Purpose This study was conducted in a large Midwestern metropolitan area to examine the language environments at home and in center-based childcare for young children who are living in poverty. We compared child language use and exposure in the home and childcare settings using extended observations with automated Language Environment Analysis to gain a deeper understanding of the environmental factors that may affect change in language outcomes for young children. Method Thirty-eight children, along with parents ( = 38) and childcare providers ( = 14) across five childcare centers, participated in this study. Each child completed a standardized language assessment and two daylong recordings with Language Environment Analysis to determine the number of adult words, conversational turns, and child vocalizations that occurred in each setting. Data were analyzed at 5-min intervals across each recording. Results Comparisons between home recordings in this sample and a comparison group showed reliably higher rates of adult words and conversational turns in the home setting. Linear mixed-effects regression models showed significant differences in the child language environments, with the home setting providing higher levels of language input and use. These effects were still meaningful after accounting for the time of day, participant demographic characteristics, and child language ability. Conclusions Practical implications for supporting child language development across settings are discussed, and suggestions for further research are provided. Supplemental Material https://doi.org/10.23641/asha.12042678.
目的 本研究在中西部大都市地区进行,旨在考察贫困家庭和日托中心的儿童的家庭和日托环境中的语言环境。我们使用扩展观察和自动语言环境分析比较了家庭和日托环境中的儿童语言使用和暴露情况,以更深入地了解可能影响幼儿语言发展结果的环境因素。 方法 本研究共有 38 名儿童及其父母(共 38 人)和 14 名日托提供者参与了这项研究。每个孩子都完成了一项标准化的语言评估和两次语言环境分析的全天录音,以确定每个环境中出现的成人单词、对话轮次和儿童发声的数量。数据在每次录音的 5 分钟间隔内进行分析。 结果 与样本中的家庭录音进行比较,结果显示家庭环境中的成人单词和对话轮次可靠地更高。线性混合效应回归模型显示,儿童语言环境存在显著差异,家庭环境提供了更高水平的语言输入和使用。在考虑了一天中的时间、参与者的人口统计学特征和儿童的语言能力后,这些影响仍然有意义。 结论 讨论了在不同环境中支持儿童语言发展的实际意义,并提供了进一步研究的建议。 补充材料 https://doi.org/10.23641/asha.12042678.