International Journal of Education and Human Developments (IJEHD)

Despite the growing interest in computer games as instructional media to enhance students' learning in school, there remains a lack of reliable and valid measurement tools to evaluate their effectiveness. In response to this gap, we have developed the Computer Game Engagement Instrument (CGEI). This instrument aims to assess students' levels of engagement in instructional games, which research has identified as a crucial factor influencing academic engagement. This study follows Messick's framework for the development and validation of the CGEI and utilizes the Rasch measurement model. We administered the CGEI to 250 postsecondary school students to analyze items and test characteristics, as well as the test-takers' ability levels. The study explores the psychometric properties of the CGEI and discusses its implications for educational practice. Our findings provide empirical evidence supporting the validity of the CGEI, offering a valuable tool for evaluating the engagement levels of students in instructional computer games.