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Online English proficiency test
The Duolingo English Test (DET) is a standardized test of the English language designed to be internet-based rather than paper-based. DET is an adaptive test that uses an algorithm to adapt the difficulty of the test to the test-taker. It was developed by Duolingo in 2014 as Test Center and grew in popularity and acceptance at universities during the COVID-19 pandemic. The test is used by around 5... Wikipedia