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      How does longitudinal interaction promote second language speech learning? Roles of learner experience and proficiency levels

      1 , 2 , 3 , 4
      Second Language Research
      SAGE Publications

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          Abstract

          This study examined how longitudinal interaction impacts the development of second language (L2) oral proficiency in relation to learners’ different experience and proficiency levels. Japanese learners of English as a foreign language (EFL) participated in weekly conversation exchanges with native speakers (NSs) in the USA via videoconferencing tools over one academic semester (12 weeks). The participants’ spontaneous speech, elicited from a story telling task before and after the treatment, was analysed via a set of linguistic measures. In line with the componential view of L2 oral proficiency and development, our results hinted L2 learners’ experience and proficiency levels as a mediating factor for determining the link between interaction and its impact on different dimensions of L2 speech learning. While the longitudinal interaction equally improved the participants’ grammatical complexity and articulation rate – a fundamental component for defining L2 oral proficiency – the development of less experienced/proficient learners was observed across a wide range of lexicogrammar and fluency features (lexical appropriateness/richness, grammatical accuracy, pause ratio). It was only more experienced/proficient learners that significantly enhanced phonological accuracies (segmentals, word stress) which are thought to gradually develop in the later stages of L2 speech learning. These findings add another piece of evidence for the differential effects of long-term interaction relative to L2 learners’ developmental stages.

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          Most cited references5

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          A Cognitive Approach to Language Learning

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            Introduction to Instructed Second Language Acquisition

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              Input, interaction, and corrective feedback in L2 learning

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                Author and article information

                Contributors
                Journal
                Second Language Research
                Second Language Research
                SAGE Publications
                0267-6583
                1477-0326
                November 14 2019
                : 026765831988498
                Affiliations
                [1 ]University College London, UK
                [2 ]Lancaster University, UK
                [3 ]University of Illinois, USA
                [4 ]University of Tokyo, Japan
                Article
                10.1177/0267658319884981
                b406b01b-d4f7-4761-957c-e31e137375bf
                © 2019

                http://journals.sagepub.com/page/policies/text-and-data-mining-license

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