코메트릭스(Coh-metrix)를 이용한 중학교 1학년 개정 영어 교과서의 코퍼스 언어학적 비교 분석

A Corpus-based analysis of middle school English 1 textbooks with Coh-Metrix.

We analyzed eight popular first grade middle school English textbooks with Coh-Metrix, and automated Web-based software tool designed to evaluate text and discourse based on many linguistic and psycholinguistic measures For this, we created a corpus which consists of 101 Unicode text files These text files contained reading materials presented in eight middle school English textbooks Coh-Metrix was applied to investigate differences among the textbooks and differences among the chapters of each textbook in terms of some representative Coh-Metrix measures selected for this study Our findings showed that there were differences among the textbooks in the basic count, word frequency, readability, syntactic complexity, lexical diversity, co-referential coherence, and semantic coherence measures There were also differences among the chapters of each textbook in those Coh-Metrix measures Our findings imply more systematic criteria as well as practical evaluation measures are needed for the design of school English textbooks, they can serve as specific guidelines for textbook writers and later help English teachers select the most appropriate teaching materials for their teaching context