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Effects of Time-Varying Parent Input on Children’s Language Outcomes Differ for Vocabulary and Syntax
Psychological Science ( IF 10.172 ) Pub Date : 2021-03-15 , DOI: 10.1177/0956797620970559
Catriona Silvey 1 , Özlem Ece Demir-Lira 2, 3, 4 , Susan Goldin-Meadow 5, 6 , Stephen W Raudenbush 7
Affiliation  

Early linguistic input is a powerful predictor of children’s language outcomes. We investigated two novel questions about this relationship: Does the impact of language input vary over time, and does the impact of time-varying language input on child outcomes differ for vocabulary and for syntax? Using methods from epidemiology to account for baseline and time-varying confounding, we predicted 64 children’s outcomes on standardized tests of vocabulary and syntax in kindergarten from their parents’ vocabulary and syntax input when the children were 14 and 30 months old. For vocabulary, children whose parents provided diverse input earlier as well as later in development were predicted to have the highest outcomes. For syntax, children whose parents’ input substantially increased in syntactic complexity over time were predicted to have the highest outcomes. The optimal sequence of parents’ linguistic input for supporting children’s language acquisition thus varies for vocabulary and for syntax.



中文翻译:

时变父母输入对儿童语言结果的影响因词汇和句法而异

早期语言输入是儿童语言结果的有力预测因素。我们调查了关于这种关系的两个新问题:语言输入的影响是否随时间而变化,以及时变语言输入对儿童结果的影响是否因词汇和句法而异?使用流行病学方法来解释基线和时变混杂因素,我们根据孩子 14 个月和 30 个月大时父母的词汇和句法输入,预测了 64 名儿童在幼儿园词汇和句法标准化测试中的结果。对于词汇,父母在发育早期和后期提供不同输入的孩子预计会有最高的结果。对于语法,随着时间的推移,父母的输入在句法复杂性方面显着增加的孩子预计会有最高的结果。因此,支持儿童语言习得的父母语言输入的最佳顺序因词汇和句法而异。

更新日期:2021-03-15
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