Development and validation of expert evaluation instrument for web-based grammatical competence module

Abstract

The advancements in web-based learning and improvements in academic grammatical competence have increased the importance of effective grammar learning. The foundation of the English language is grammatical proficiency. This study aimed to address the evaluation gap for web-based grammatical competence modules by developing and validating a 45-item assessment tool that encompasses four essential constructs: design, technical aspects, content, and pedagogy. The content validity of the instrument was evaluated through a two-step process: instrument development and instrument validation. Six experts reached consensus (I-CVI of 1) on 42 items, while some disagreement (I-CVI of 0.83) was noted on three items, confirming the relevance of the instrument. The S-CVI (average) content validity index of 0.99 and the S-CVI (universal agreement) index of 1 confirmed the instrument's content validity. Consequently, this study demonstrates that the effectiveness of a web-based grammatical competence module in enhancing students' English grammatical skills can be measured using this validated instrument. ESL teachers can also employ this instrument as a reliable method to assess and improve online grammar courses, ultimately supporting ESL learners in achieving better English language proficiency.