Lexical variables, such as word length, word class, and word frequency, affect the difficulty of learning second language (L2) vocabulary. Prior studies have yielded mixed outcomes, contingent on the learning context, purpose, and learners. This study investigates the lexical effects on L2 vocabulary development among Korean EFL learners at the tertiary level. It focuses on the initial form-meaning mapping and the learning setting is limited to app-based, intentional vocabulary learning. The study analyzed 100 English words memorized by 40 Korean university students outside the classroom. Several orthographic features were quantified using the LexiCAL program with the iWeb corpus as the input corpus. For regression analyses, where the dependent variable was the item facility rate from the immediate and delayed post-test, respectively, three variable selection methods were applied to develop a baseline model: stepwise regression, best subset regression, and least absolute shrinkage and selection operator. Results indicated that words with later orthographic uniqueness points (OUPs) were more challenging than those with earlier OUPs, and that verbs were more difficult to learn than other word classes. The importance of learning form knowledge in the early stages and the limited impact of word frequency on L2 vocabulary learning were also discussed.
한국어
본 연구는 민주영 외 (2020) 연구의 후속 연구로, 40명의 한국 대학생이 교실 밖에서 스마트폰 앱을 통해 100개의 영어 단어를 학습할 때 각 단어의 특성이 학습 난이도에 미치는 영향을 조사하였다. 회귀 분석에 사용된 각 단어의 변수로는 단어의 길이, 품사, 빈도, 다의어 개수, 다양한 철자적 특성(예: 철자 독창성 지점, 철자적 레벤슈타인 거리 20 등)이 포함되었으며, 철자적 특성은 LexiCAL 프로그램을 이용해 계량화하였다. 철자 빈도에 기반한 단어의 특성은 iWeb 말뭉치와 비교하여 산출되었다. 회귀 모델 구축 시 종속 변수는 사전-사후 단어 점수 차이로 설정하였으며, 독립 변수 선정을 위해 stepwise regression, best subset regression, least absolute shrinkage and selection operator의 세 가지 변수 선택 방법을 적용하였다. 분석 결과, 철자적 독창성 지점(Orthographic Uniqueness Point)이 늦게 나타나는 단어일수록 더 어려웠으며, 동사는 다른 품사에 비해 학습 난이도가 높은 것으로 나타났다. 연구 결과에 기반하여, 영어 단어 학습의 초기 단계에서 형태적 지식 학습의 중요성과 EFL 환경에서 단어 빈도의 제한된 영향을 논의하였다.
목차
Abstract 요약 Introduction Literature Review Learning L2 Vocabulary Learning Burden Lexical Effects Study Methodology Participants Vocabulary Tests Lexical Variable Selection Analysis Results Discussion Conclusion Acknowledgements The Author References
The goals of Asia TEFL are to promote scholarship, disseminate information, and facilitate cross-cultural understanding among persons concerned with the teaching and learning of English in Asia. In order to accomplish this, Asia TEFL will pursue the following goals:
1. To link ELT professionals in joint research on issues and concerns regarding English teaching and learning in the Asian context.
2. To publish an academic journal, The Asia TEFL Journal, as an internationally recognized journal in the field of English language teaching.
3. To host conferences and seminars addressing important issues concerning ELT in Asia.
4. To develop proficiency guidelines and assessment methods designed for the needs of the Asian context.
5. To develop programs for Asian learners and teachers of English to build their English language proficiency and cultural understanding and provide them with the skills required to be efficient English teaching professionals.
간행물
간행물명
The Journal of AsiaTEFL
간기
계간
pISSN
1738-3102
eISSN
2466-1511
수록기간
2004~2026
등재여부
SCOPUS,KCI 등재
십진분류
KDC 740DDC 420
이 권호 내 다른 논문 / The Journal of AsiaTEFL Vol.21 No.4