The role of international students' English language proficiency has been extensively researched to understand its impact on academic achievement in English-medium universities, mainly because of students' non-English-speaking backgrounds. However, the relationship between language proficiency and academic achievement among…

Multilingualism in education is encouraged in South Africa, and children are expected to become bilingual and biliterate during the early primary grades. Much focus has been placed on measuring literacy in children's first language, often the medium of instruction (MOI), and English, the language typically used as MOI from fourth grade. However,…

Language proficiency testing serves an important function of classifying examinees into different categories of ability. However, misclassification is to some extent inevitable and may have important consequences for stakeholders. Recent research suggests that classification efficacy may be enhanced substantially using computerized adaptive…