The Efficacy of Recasts in Language Intervention: A Systematic Review and Meta-Analysis
The Efficacy of Recasts in Language Intervention: A Systematic Review and Meta-Analysis
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DOI：
10.1044/2015_ajslp-14-0105
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发表时间：
2015-05-01
影响因子：
2.6
通讯作者：
Fey, Marc E.
中科院分区：
文献类型：
--
作者：
Cleave, Patricia L.;Becker, Stephanie D.;Fey, Marc E.
目的：本系统回顾和荟萃分析批判性地评估了对话重铸对语言障碍儿童语法发展有效性的研究证据。方法：进行两种不同但互补的评价，然后进行综合评价。系统检索文献得到35篇文章用于系统评价。研究采用了各种各样的研究设计，但所有研究的干预措施中，重铸是关键组成部分。这项荟萃分析只包括了可以计算效应量的研究，但它确实包括了以重铸为主要部分的一揽子干预措施。纳入了14项研究，其中7项也在系统评价中。根据研究阶段对研究进行分组，并对研究质量进行评分。结果：研究质量和证据强度差异很大。然而，在所有阶段，绝大多数研究都支持使用重铸。荟萃分析发现，平均效应值为。近端测量和。76远端测量，反映了约0.75至1.00标准差的积极效益。结论：现有的证据是有限的，但它支持在语法干预中使用重铸。讨论了语法干预中重铸的关键特征。
Purpose: This systematic review and meta-analysis critically evaluated the research evidence on the effectiveness of conversational recasts in grammatical development for children with language impairments.Method: Two different but complementary reviews were conducted and then integrated. Systematic searches of the literature resulted in 35 articles for the systematic review. Studies that employed a wide variety of study designs were involved, but all examined interventions where recasts were the key component. The meta-analysis only included studies that allowed the calculation of effect sizes, but it did include package interventions in which recasts were a major part. Fourteen studies were included, 7 of which were also in the systematic review. Studies were grouped according to research phase and were rated for quality.Results: Study quality and thus strength of evidence varied substantially. Nevertheless, across all phases, the vast majority of studies provided support for the use of recasts. Meta-analyses found average effect sizes of .96 for proximal measures and .76 for distal measures, reflecting a positive benefit of about 0.75 to 1.00 standard deviation.Conclusion: The available evidence is limited, but it is supportive of the use of recasts in grammatical intervention. Critical features of recasts in grammatical interventions are discussed.