About Duolingo Test The Duolingo English Test (DET) measures English language proficiency of individuals who want to study in countries where English is used as a primary language of communication. DET is offered to candidates around the globe and can be conveniently taken from home. Test slots are available as early as 24-48 hours prior, depending on availability Duolingo Test Exam Structure Exam pattern Quick Setup – 5 mins A quick check of your identification and system requirements Adaptive Test – 45 mins This comprises of all 4 language skills – listening, reading, writing, and speaking – which are evaluated based on a fixed algorithm. Test contents differ from candidate to candidate. Video and Writing Sample – 10 mins These are two ungraded sections which are shared with the score accepting organizations along with the candidate's test scores. These are open-ended questions with a choice in each. Total Time 1 hour Nature of Exam Computer Based Test (CBT) IELTS Test Fee $65 Other Details Links https://englishtest.duolingo.com/home Score Validity 2 Years Score Reporting Applicants can report their DET score to any number of score-accepting organizations. The score reporting is entirely free.