The Routledge Handbook of Digital Language Assessment - Innovations and Insights from the Duolingo English Test

The Routledge Handbook of Digital Language Assessment offers a contemporary account of digital language assessment in a period of rapid technological and educational change. Bringing together contributions from experts across diverse fields and contexts, the chapters examine issues related to test theory, test development, test scoring, test infrastructure and quality assurance, and test impact. Using the Duolingo English Test (DET) as a central case study, the volume explores how digital-first assessment can expand access while maintaining validity, fairness, security, and stakeholder trust. Designed for researchers, educators, and anyone interested in the future of language assessment, this volume provides a clear and engaging overview of where the field is headed and why it matters.