Optimizing Second Language Vocabulary Instruction with Aptitude-Treatment Interaction

2023 Fiscal Year Final Research Report

• Project/Area Number: 20H01287
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 02100:Foreign language education-related
• Research Institution: Kobe City University of Foreign Studies (2021-2023); Meikai University (2020)
• Principal Investigator: Hamada Akira 神戸市外国語大学, 外国語学部, 准教授 (50779626)
• Project Period (FY): 2020-04-01 – 2024-03-31
• Keywords: 英語教育 / 語彙指導 / メタ分析 / 適性処遇交互作用 / 適性 / 言語不安 / 外国語学習不安 / 心理測定

Outline of Final Research Achievements

This study attempted to create a database of English vocabulary teaching methods and to construct a support system that maximizes learning outcomes according to learners' aptitudes. A meta-analysis was conducted to determine which learners showed the highest learning efficiency for which teaching methods. Furthermore, a diagnostic system with a psychometric scale was incorporated into the database to assign learners to the most appropriate teaching method. By evaluating the validity of such a learning support system, this study proposed a theoretical framework that comprehensively explains the aptitude-treatment interaction in English vocabulary teaching and an evidence-based English vocabulary learning program.

Free Research Field

英語教育

Academic Significance and Societal Importance of the Research Achievements

本研究では，過去の膨大な一次研究を系統化することで，個々の研究成果に囚われず，統一的な指標から指導の効果を評価できるメタ分析を用いた。適切なメタ分析から得られた知見は，エビデンスに基づく実践の枠組みにおいて，最も妥当性の高い証拠として扱われる。英語語彙指導に関するメタ分析の結果が得られたことで，学習者の個性に応じた指導が求められる外国語教育においては，学習者個々人の適性を正確に把握し，研究のエビデンスに基づく指導法を選択していくことが可能になったと言える。