多邻国英语测试
DET · 160 scale
在线自适应英语测试，可在任意时间在家完成，近年接受度持续上升。
The Duolingo English Test (DET) is a computer-adaptive English proficiency test administered entirely online by Duolingo. It can be taken on demand from home, requires no travel to a test center, and delivers results within 48 hours. Adoption by US and international universities has grown rapidly in recent years, accelerated by the test's accessibility, low cost, and item-level adaptivity that shortens testing time to roughly one hour.
| Administrator (主办方) | Duolingo |
| Score Range (分数) | 10-160 |
| Sections (科目) | Literacy, Comprehension, Conversation, Production |
| Duration (时长) | ~1 hour |
| Validity (有效期) | 2 years |
| Format (形式) | Online, on-demand, computer-adaptive |
由计算机自适应题型与开放写作/口语样本组成，全程录像监考。
The DET begins with a graded adaptive section in which the difficulty of each item adjusts to the test-taker's performance, covering literacy, comprehension, conversation and production skills through varied item types such as read-and-complete, listen-and-type, image description and timed writing. This is followed by an ungraded writing and speaking sample sent to institutions alongside the score report. The entire session is recorded and reviewed by a combination of automated and human proctoring.
总分 10-160，附四个子分；多数美本要求 105+。
The DET yields an overall score on a 10-160 scale, along with four subscores (Literacy, Comprehension, Conversation, Production) each also reported on a 10-160 scale. Duolingo provides concordance tables mapping DET scores to TOEFL iBT and IELTS Academic bands. Competitive US undergraduate programs typically expect an overall score of 105 or above, though requirements vary substantially by institution.
随时报名、随时考试，无需预约固定考次，48 小时内出分。
Unlike most standardized tests, the DET is fully on-demand: candidates can purchase a test voucher and take the exam at any time from a quiet, well-lit location with a stable internet connection and a front-facing camera. Results are typically available within 48 hours and may be sent to an unlimited number of institutions free of charge. Test-takers may sit the DET as often as desired, but no more than twice within a 30-day window.
熟悉题型节奏、保证考场环境合规，使用 Duolingo 官方免费模考。
DET preparation should focus on item-type familiarity and quick response, since the adaptive format rewards accuracy and consistency across short tasks. Candidates should complete several official practice tests on the Duolingo website, ensure their testing environment meets technical and behavioral requirements, and practice the timed writing and speaking samples that are shared with institutions. Daily short-form vocabulary and dictation drills translate well to the DET format.