Duolingo English Test (DET), as a new generation of online language assessment tool, has been recognized by top colleges and universities around the world, including Yale and Duke. Compared with traditional IELTS/TOEFL, its innovative advantages are reflected in the following: full-process AI proctoring technology, which guarantees the integrity of the test through camera and keyboard input monitoring; self-adaptive question types that can accurately determine the real level of candidates; and high efficiency of completing the test in 60 minutes and issuing the results in 48 hours. 2023 data shows that the correlation coefficient between DET scores and TOEFL iBT reaches 0.89, which verifies the validity of its measurements.
The test consists of four innovative question types: "Fill-in-the-blank Dictation" examines real-time language processing skills; "Picture Description" assesses improvisation skills; and "Video Interview" records dynamic language output; The "Writing Sample" is scored using semantic network analysis. At only $49, the DET is one-third the cost of the traditional test, making it ideal for applicants who are in desperate need of a score. 3,000 colleges and universities have listed the DET as an official language test for admission, including 43 of the top 50 colleges and universities in the United States.
This answer comes from the articleDuolingo: an interactive tool for learning more than 40 languages for freeThe
