語彙の知識を洗練することで、より流暢な英語に~単純な意味とのつながりから実践で使える柔軟な単語力へ~

ad

2025-07-08 早稲田大学

早稲田大学・東北大学などの研究グループは、英語学習者が流暢に話す力と「自動化された語彙知識」の関係を明らかにしました。この知識とは、文脈に応じて単語の意味を素早く正確に認識できる能力で、従来の「単語と意味の一対一の対応」よりも、発話の流暢さ(特に節内の沈黙の少なさ)と強く関連することが判明。日本人大学生210人の実験で、自動化語彙知識が高いほど話す速度が速く、沈黙も少ない結果が得られました。この知見は、音声を使った語彙学習の重要性と、現実的な言語使用力の向上に向けた教育的意義を示します。

語彙の知識を洗練することで、より流暢な英語に~単純な意味とのつながりから実践で使える柔軟な単語力へ~
図 自動化語彙知識を測るテスト

<関連情報>

L2認知的流暢性としての自動化された音韻語彙知識: L2音声生成における宣言的自動化統合モデルの検証 Automatized phonological vocabulary knowledge as L2 cognitive fluency: Testing the declarative–automatized integrative model in L2 speech production

Kotaro Takizawa , Kazuya Saito , Yui Suzukida , Satsuki Kurokawa , Takumi Uchihara
Applied Linguistics  Published:07 July 2025
DOI:https://doi.org/10.1093/applin/amaf042

Abstract

Prior studies developed a lexicosemantic judgment task (LJT) to assess automatized phonological vocabulary knowledge, which reflects the accurate, prompt, and stable access to L2 phonological vocabulary knowledge in contexts. Automatized vocabulary knowledge has been shown to strongly predict general listening ability. Shifting the focus on automaticity in speech production, the current study explored the role of automatized vocabulary knowledge as a measure of L2 cognitive fluency predicting L2 utterance fluency (UF) in spontaneous speech. A total of 210 university students took a multiple-choice vocabulary test and the LJT to assess the declarative and automatized aspects of phonological vocabulary knowledge, respectively. UF was measured as articulation rate and mid/end-clause silent pause ratio, elicited through picture narrative and personal opinion tasks, each presenting differential lexical demands. Memory-based cognitive aptitude was also considered. Mixed-effects regression analyses revealed that automatized vocabulary knowledge, rather than the declarative counterpart, underlies fluent speech performance free of undue pauses. Task effects were identified, indicating that automatized vocabulary knowledge is sensitive to the lexical demands of speech tasks.

教育
ad
ad
Follow
ad
タイトルとURLをコピーしました