Input Subject Diversity Enhances Early Grammatical Growth: Evidence from a Parent-Implemented Intervention
Input Subject Diversity Enhances Early Grammatical Growth: Evidence from a Parent-Implemented Intervention
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DOI：
10.1080/15475441.2016.1193020
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发表时间：
2017-01-01
影响因子：
1.5
通讯作者：
McKenna, Megan M.
中科院分区：
文献类型：
--
作者：
Hadley, Pamela A.;Rispoli, Matthew;McKenna, Megan M.
目的：目前的研究采用了干预设计，以检验这一假设，父母输入句子与不同的词汇名词短语（NP）的科目将加速增长，在儿童的句子diversity.Method：儿童的第三人称句子多样性的增长建模从21-30个月（n = 38）在21，24，27，和30个月的会话语言样本。处理父母（n = 19）接受旨在增加词汇NP科目的策略指导（例如，（宝宝在睡觉）。教学包括一个小组教育会议和两个单独的辅导会议时发生的儿童约22-23 months.Results：治疗显着增加父母的词汇NP主题令牌和类型（n（p）（2）>= 0.45）相比，控制。在小组处理效应和个体输入效应的分析中，儿童的不同单词数是句子多样性的一个显著预测因子。治疗条件不是治疗效果对儿童句子多样性的显著预测因素，但父母的词汇NP主题类型是儿童句子多样性增长的显著预测因素，即使在控制了儿童随时间推移的不同单词数量之后。这些发现建立了父母输入的主体多样性与儿童早期语法发展之间的联系，以及使用相对简单的策略来改变父语言输入的这种特定语法属性的可行性。
Purpose: The current study used an intervention design to test the hypothesis that parent input sentences with diverse lexical noun phrase (NP) subjects would accelerate growth in children's sentence diversity.Method: Child growth in third person sentence diversity was modeled from 21-30 months (n = 38) in conversational language samples obtained at 21, 24, 27, and 30 months. Treatment parents (n = 19) received instruction on strategies designed to increase lexical NP subjects (e.g., The baby is sleeping.). Instruction consisted of one group education session and two individual coaching sessions which took place when children were approximately 22-23 months of age.Results: Treatment substantially increased parents' lexical NP subject tokens and types (n(p)(2) >= .45) compared to controls. Children's number of different words was a significant predictor of sentence diversity in the analyses of group treatment effects and individual input effects. Treatment condition was not a significant predictor of treatment effects on children's sentence diversity, but parents' lexical NP subject types was a significant predictor of children's sentence diversity growth, even after controlling for children's number of different words over time.Conclusions: These findings establish a link between subject diversity in parent input and children's early grammatical growth, and the feasibility of using relatively simple strategies to alter this specific grammatical property of parent language input.