Investigating vocabulary coverage and load in an Indonesian EFL textbook series

Bibliographic Data

ID21240122
AuthorsYurieke Nadiya Rahmat (Victoria University of Wellington), Averil Coxhead (0000-0003-3392-6961, Victoria University of Wellington)
Year2021
Volume10
Issue3
Publication date2021-01-31
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueIndonesian Journal of Applied Linguistics (JOURNAL)
Journal identifiersISSN: 2301-9468 • E-ISSN: 2502-6747
PublisherUniversitas Pendidikan Indonesia (UPI) (PUBLISHER)
DOI10.17509/ijal.v10i3.31768
OpenAlexW3129051886
LanguageEN
Citations received4
References cited13

This article reports a corpus-based study of a series of Indonesian EFL textbooks for senior high school students from grades 10to 12 (16-18 years old), published by the Indonesian government. The textbooks were collected from the Indonesian bookkeeping information system and transferred into ready-to-analyse corpora using Range Programme (Heathley et al., 2002) to know the vocabulary load and what words are available for learning. The most significant finding in this study showed that the textbooks require 3,000-4,000 word families to reach 95% coverage with some help needed to comprehend the textbooks and 5,000-6,000 word families to gain 98% coverage which means the students can cope independently to read the textbooks. The textbooks contain a large amount of high-frequency words with more than 80% and up to 7% of Indonesian words which play roles in learning objectives and pre-vocabulary teaching activities. The results of this study suggest the vocabulary features and implications for learning, present the pedagogical implications for teachers and textbook writers, and provide a springboard for future research

Indonesian · Indonesian government · Linguistics · Mathematics education · Vocabulary · Word list · World Wide Web · Computer Science · Lexicography and Language Studies · Natural Language Processing Techniques · Psychology · Second Language Acquisition and Learning

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