掲載種別：研究論文（学術雑誌）   出版者・発行元：Cambridge University Press (CUP)  

Abstract

Previous research has indicated that explicit information (EI) about either the first language (L1) or second language (L2) along with task-essential practice can facilitate L2 learning (e.g., Fernández, 2008; McManus, 2022). However, little research has examined L1–L2 contrastive EI with L1/L2 practice. Targeting plural-marking accuracy, the present study sought to fill this gap by exposing 127 Japanese intermediate learners of English to six online treatment sessions across four conditions: (1) non-contrastive EI (pluralization rule explanation) + L2 practice, (2) contrastive EI + L2 practice, (3) as per Condition 2 + additional L1 practice (application of L2 pluralization to L1 through the Japanese suffix –tachi), and (4) using prepositions as a control, non-contrastive EI (prepositional rule explanation) + L2 practice. Accuracy was tested at pre/post/delayed intervals using an acceptability judgement task (reading) and a picture description task (writing). Statistical analyses demonstrated greater gains from the contrastive variables in the immediate post-test, with L1 practice appearing especially beneficial, despite improvements diminishing in the delayed post-test. Supplementary data from retroactive interviews and questionnaire responses indicated favourable orientations towards the intervention. The study advances understanding of how EI and practice type can be used to maximize L2 learning through web-based practices tailored to the nature of the learning problem.

DOI： 10.1017/s027226312400038x

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掲載種別：研究論文（学術雑誌）  

Learners whose first language lacks a system for acknowledging countability and associated plural forms may experience problems in English when surrounding sentences are deictically referenced (e.g., that/those; it is/they are). Moreover, noun phrases may be omitted or repeated, resulting in further inaccuracies. This exploratory study (N = 81) sought to establish whether a synthesis of input-based and output-based contrastive instruction delivered through an online medium would improve deictic referencing accuracy in a controlled speaking task among Japanese university EFL learners. The findings revealed that for deictic plural forms, no significant differences were observed between the experimental and control groups. However, for noun phrase omissions and repetitions, the experimental group displayed significant within-group improvements, suggesting partial effectiveness of the treatment. The study reiterates the resistant nature of linguistic features influenced by the underlying concept of countability, yet highlights the rich potential that web-based contrastive instruction may provide in enhancing grammatical accuracy.

DOI： 10.18823/asiatefl.2022.19.3.11.937

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記述言語：英語  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Informa UK Limited  

DOI： 10.1080/09658416.2020.1737096

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記述言語：英語   掲載種別：書評論文，書評，文献紹介等   出版者・発行元：TESOL Journal  

DOI： 10.1002/tesj.699

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開催年月日： 2025年3月

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開催年月日： 2024年

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開催年月日： 2022年3月

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記述言語：英語   会議種別：口頭発表（一般）  

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記述言語：英語   会議種別：口頭発表（一般）  

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