Mixed Methods Investigation into Test Score Users’ Perspectives about IELTS Reading Skill Profiles

Abstract

Research on the use of standardized test scores in higher education reveals significant variations in attitudes and perceptions of language proficiency tests among test score users. Most test score users have limited knowledge about test score interpretations in terms of what English as additional language (EAL) students typically know and can do at the language proficiency levels associated with admission cut scores. To address this critical gap, the language testing field has actively investigated the potential of Diagnostic Classification Models (DCMs) to offer useful information, facilitating test score users in their decision-making processes. The present two-phase mixed methods study examined the characteristics of reading skill profiles across various IELTS band scores, specifically focusing on the most frequently used admission cut scores: 6.0, 6.5, and 7.0. The study further explored test score users’ perspectives about these admission test scores, challenges encountered by EAL students, and the usefulness of reading skill profiles derived from DCMs. Findings from the application of DCMs to IELTS reading test responses (N = 5,222) showed a lack of advanced skills, such as inferential reasoning, at these commonly employed cut scores. Test score users perceived the skill profiles as instrumental in distinguishing reading abilities across various band scores and discussed the EAL students’ lack of critical reasoning, especially in inferential and synthesis tasks in coursework. The results underscore the potential of DCM-based skill profiles in providing test score users with detailed information about test score interpretations.