Readability of Reading Passages in the General Aptitude Test (GAT) and English Textbooks for the Upper Secondary Level in Thailand by Using Coh-Metrix

Main Article Content

Wichien Gamla
Poranee Deerajviset

Abstract

This study aimed to compare the readability levels of the reading passages in the General Aptitude Test (GAT) and those of English textbooks for the Upper Secondary Level in Thailand. The corpus of the General Aptitude Tests (C-GAT) was compiled from 70 reading passages on GAT test papers from 2009-2021, and the corpus of English textbooks (C-ET) was compiled from 66 English textbook series. The data were quantitatively analyzed to investigate the readability levels of the reading passages in the two sets of corpora. The instrument of this study was Coh-Metrix - a common core text ease and readability assessor. The data were analyzed based on 11 categories of language characteristics divided into 106 indices. The results showed that the reading passages in the C-ET were easier than those in the C-GAT in 10 out of 11 categories with significant mean values in 4 categories: text easability principal component scores, referential cohesion, connectives, and word information. As a result, it can be concluded that the readability levels of the teaching and testing materials were incongruent. Thus, English textbook designers, English teachers, and test developers need to concentrate on the relationship among reading passages used in both national tests and English textbooks in order to achieve the right balance between students’ English reading skills and results of the tests.

Article Details

How to Cite
Gamla, W., & Deerajviset, P. (2023). Readability of Reading Passages in the General Aptitude Test (GAT) and English Textbooks for the Upper Secondary Level in Thailand by Using Coh-Metrix. LEARN Journal: Language Education and Acquisition Research Network, 16(2), 664–686. Retrieved from https://so04.tci-thaijo.org/index.php/LEARN/article/view/266978
Section
Research Articles
Author Biographies

Wichien Gamla, Faculty of Humanities and Social Sciences, Khon Kaen University, Thailand

An M.A. in English student at the Faculty of Humanities and Social Sciences, Khon Kaen University, Thailand. He graduated with a Bachelor of Arts in English majoring in pedagogy from Roi-Et Rajabhat University. He is currently teaching at Pathumrat Pittayakom School in Roi-Et province, Thailand. His research interests include readability and language analysis.

Poranee Deerajviset, Faculty of Humanities and Social Sciences, Khon Kaen University, Thailand

An assistant professor at the Department of English, Faculty of Humanities and Social Sciences, Khon Kaen University, Thailand. She graduated with a Bachelor of Arts in English from Khon Kaen University. She received her Master of Philosophy in Education from the University of Cambridge and her Ph.D. in Education from the University of Sydney. Her primary research areas include second language writing and technology in language teaching and learning.

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