EIREducational Innovation Research3029-18443029-1852WHIOCE PUBLISHING PTE. LTD.10.18063/EIR.v3i9.1142ArticleA Review of the Online ESL Assessment of the Ontario Secondary School Diploma (OSSD) System from Canadahttps://artdesignp.com/journal/EIR/3/9/10.18063/EIR.v3i9.1142WangLihua2025392025-10-26The Ontario Secondary School Diploma (OSSD) system is widely recognized as a cornerstone of Ontario’s education system in Canada. Originally, it was designed to get students prepared for the workforce and post-secondary education. Over time, it was now adopted in many countries worldwide for international students. Among the diverse components of the OSSD system, the English as a Second Language (ESL) testing plays a crucial role in assessing as well as improving the English language skills of non-native speakers. This paper examines the construct, design, scoring, and validity of the ESL assessment within the OSSD framework, emphasizing its strengths while identifying areas for enhancement. By analyzing these aspects, this paper aims to offer a thorough understanding of the ESL assessment’s efficacy and its congruence with the OSSD educational objectives.Ontario Secondary School Diploma (OSSD),Online,ESL assessment,Progressive evaluation,Formative, Summative, Rubrics,Criteria, Visualization of grades

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