Educational L2 constructs and diagnostic measurement

Abstract Various stakeholders, such as policymakers and educators, require diagnostic feedback actionable test results. One particular context in which fine-grained results are of utmost importance is English language proficiency (ELP) assessments they used for critical decisions students. Diagnostic classification models (DCMs) afford finer levels to improve learning outcomes. This study part a research project implemented DCMs the reading domain K–12 ELP assessment grades 6–8 evaluate its feasibility utility. The U.S.-based. However, investigation relevance testing community broadly. paper discusses how address second construct within DCMs. Specifically, it details identification attributes underlying development selection alternative Q -matrices.