The moderating role of L2 proficiency in the predictive power of L1 fluency on L2 utterance fluency

IF 2.2 1区文学 0 LANGUAGE & LINGUISTICS

Language Testing Pub Date : 2024-04-17 DOI:10.1177/02655322241241851

Shungo Suzuki, Judit Kormos

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Abstract

The current study examined the extent to which first language (L1) utterance fluency measures can predict second language (L2) fluency and how L2 proficiency moderates the relationship between L1 and L2 fluency. A total of 104 Japanese-speaking learners of English completed different argumentative speech tasks in their L1 and L2. Their speaking performance was analysed using measures of speed, breakdown, and repair fluency. L2 proficiency was operationalised as cognitive fluency. Two factor scores of cognitive fluency—linguistic resources and processing speed—were computed based on performance in a set of linguistic knowledge tests capturing vocabulary knowledge, morphosyntactic processing, and articulatory skills. A series of generalised linear mixed-effects models revealed small-to-moderate effect sizes for the predictive power of L1 utterance fluency measures on their L2 counterparts. Moderator effects of L2 proficiency were found only in speed fluency measures. The relationship between L1 and L2 speed fluency was weaker for L2 learners with wider L2 linguistic resources. Conversely, for those with faster L2 processing speed, the L1-L2 link tended to be stronger. These findings indicate that the L1-L2 fluency link is subject to the complex interplay of phonological differences between learners’ L1 and L2 and their L2 proficiency, offering implications for diagnostic speaking assessment.

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L2 熟练程度对 L1 流利程度对 L2 语篇流利程度的预测力的调节作用

本研究探讨了第一语言（L1）的语篇流利程度在多大程度上可以预测第二语言（L2）的流利程度，以及 L2 能力如何调节 L1 和 L2 流利程度之间的关系。共有 104 名日语英语学习者用第一语言和第二语言完成了不同的论证性演讲任务。他们的口语表现通过速度、分解和修复流利度进行了分析。L2 熟练程度被操作化为认知流利度。认知流利性的两个因子得分--语言资源和处理速度--是根据一组语言知识测试的成绩计算得出的，这些测试包括词汇知识、词法句法处理和发音技能。一系列广义线性混合效应模型显示，L1 语篇流畅性测量对 L2 对应测量的预测能力具有小到中等的效应大小。只有在速度流利度测量中发现了 L2 能力的调节效应。对于拥有较多 L2 语言资源的 L2 学习者来说，L1 和 L2 速度流利性之间的关系较弱。相反，对于那些 L2 处理速度较快的学习者来说，L1-L2 的联系往往更强。这些研究结果表明，L1-L2流利度之间的联系受制于学习者的 L1 和 L2 语音差异及其 L2 熟练程度之间复杂的相互作用，这为诊断性口语评估提供了启示。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Language Testing Multiple-

CiteScore

6.70

自引率

9.80%

发文量

期刊介绍： Language Testing is a fully peer reviewed international journal that publishes original research and review articles on language testing and assessment. It provides a forum for the exchange of ideas and information between people working in the fields of first and second language testing and assessment. This includes researchers and practitioners in EFL and ESL testing, and assessment in child language acquisition and language pathology. In addition, special attention is focused on issues of testing theory, experimental investigations, and the following up of practical implications.