A Corpus Analysis of the Vocabulary Profile of ELT Textbooks in Non-English Major at an Islamic University in Manado

Asnidar Asnidar, Srifani Simbuka, A. Mukarramah Nagauleng

Abstract


This study investigates the vocabulary content of English subject coursebooks used to teach the students at the State Institute for Islamic Studies in Manado. The aims are to describe the types of vocabulary in these English coursebooks based on Nation’s (2001) categorization of vocabulary and to present the coverage (percentage) of each of the categories. The data was taken from three English coursebooks, which were compiled into a corpus of 63,310 words. The findings show that the three investigated coursebooks have 63,310-word tokens and 5920-word types. In terms of vocabulary categories and their coverage, the examined coursebooks contained 87.6 % high-frequency words, 6.7% academic words, and 6.7 % low-frequency. The result indicated that the coverage of each of the vocabulary categories is still in the margin of “suggested coverage” of the vocabulary profile of a text according to Nation’s typology.


Keywords


Corpus; coverage; EFL course books; vocabulary profile

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References


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