Duolingo English Test

Duolingo English Test
Acronym	DET
Type	Internet-based standardized test
Developer / administrator	Duolingo
Knowledge / skills tested	English proficiency
Purpose	To assess the English language proficiency of non-native English speakers
Year started	2016
Duration	1 hour
Score / grade range	10–160
Score / grade validity	2 years
Countries / regions	International
Languages	English
Fee	$59
Scores / grades used by	Harvard Business School, Harvard Medical School, Stanford (Undergraduate Admissions), Massachusetts Institute of Technology (MIT) (Undergraduate Admissions), and around 5,000 other institutions
Website	englishtest.duolingo.com

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.^[1]^[2]^[3] It was developed by Duolingo and grew in popularity and acceptance at universities during the COVID-19 pandemic.^[4]^[5]^[6] The test is used by around 5,000 university admissions offices, including Harvard, Stanford, MIT, and Yale.^[7]^[8] Ireland accepts the test as part of its student visa program.^[1] Universities in the United Kingdom, such as the London School of Economics, Imperial College London, Kingston University, the University of Southampton, and Middlesex University, also accept the Duolingo test.^[9]

The Duolingo English Test is scored on a scale of 10–160, with scores above 120 considering the test taker to be proficient in English. The test costs less than TOEFL or IELTS.

^ ^a ^b Yim, Noah (March 4, 2022). "Duolingo trying to get government to okay its test for international students". News.com.au. Archived from the original on March 27, 2022. Retrieved June 24, 2022.
^ Liao, Manqian; Attali, Yigal; von Davier, Alina A.; Lockwood, J. R. (July 13, 2022). Wiberg, Marie; Molenaar, Dylan; González, Jorge; Kim, Jee-Seon; Hwang, Heungsun (eds.). "Quality Assurance in Digital-First Assessments". Quantitative Psychology. Springer Proceedings in Mathematics & Statistics. 393. Cham: Springer International Publishing: 265–276. doi:10.1007/978-3-031-04572-1_20. ISBN 978-3-031-04572-1. Archived from the original on May 28, 2023. Retrieved May 28, 2023.
^ Attali, Yigal; Runge, Andrew; LaFlair, Geoffrey T.; Yancey, Kevin; Goodwin, Sarah; Park, Yena; von Davier, Alina A. (2022). "The interactive reading task: Transformer-based automatic item generation". Frontiers in Artificial Intelligence. 5: 903077. doi:10.3389/frai.2022.903077. ISSN 2624-8212. PMC 9354894. PMID 35937141.
^ Ollerton, Niamh (April 2020). "Can't Take the TOEFL? Duolingo Might Offer an Alternative". Top Universities. Archived from the original on May 28, 2023. Retrieved May 28, 2023.
^ Morris, Catherine (March 16, 2020). "US: more universities accepting the Duolingo English Test amid coronavirus uncertainty". The PIE News. Archived from the original on May 28, 2023. Retrieved May 28, 2023.
^ Langenfeld, Thomas; Burstein, Jill; von Davier, Alina A. (May 9, 2022). Musso, Mariel F.; Bulut, Okan; Archer, Elizabeth (eds.). "Digital-First Learning and Assessment Systems for the 21st Century". Frontiers in Education. 7. Edited by Mohammed Saqr. doi:10.3389/feduc.2022.857604. ISSN 2504-284X. Archived from the original on January 22, 2024.
^ "Duolingo English Test". englishtest.duolingo.com. Archived from the original on May 28, 2023. Retrieved May 28, 2023.
^ Isaacs, Talia; Hu, Ruolin; Trenkic, Danijela; Varga, Julia (April 3, 2023). "Examining the predictive validity of the Duolingo English Test: Evidence from a major UK university". Language Testing. 40 (3): 748–770. doi:10.1177/02655322231158550. ISSN 0265-5322. S2CID 257975807.
^ Honebeek, Talya (2024). "Which top UK universities accept the Duolingo English Test?". edvoy. Archived from the original on December 14, 2022. Retrieved December 14, 2022.

[Yim-1] Yim, Noah (March 4, 2022). "Duolingo trying to get government to okay its test for international students". News.com.au. Archived from the original on March 27, 2022. Retrieved June 24, 2022.

[2] Liao, Manqian; Attali, Yigal; von Davier, Alina A.; Lockwood, J. R. (July 13, 2022). Wiberg, Marie; Molenaar, Dylan; González, Jorge; Kim, Jee-Seon; Hwang, Heungsun (eds.). "Quality Assurance in Digital-First Assessments". Quantitative Psychology. Springer Proceedings in Mathematics & Statistics. 393. Cham: Springer International Publishing: 265–276. doi:10.1007/978-3-031-04572-1_20. ISBN 978-3-031-04572-1. Archived from the original on May 28, 2023. Retrieved May 28, 2023.

[3] Attali, Yigal; Runge, Andrew; LaFlair, Geoffrey T.; Yancey, Kevin; Goodwin, Sarah; Park, Yena; von Davier, Alina A. (2022). "The interactive reading task: Transformer-based automatic item generation". Frontiers in Artificial Intelligence. 5: 903077. doi:10.3389/frai.2022.903077. ISSN 2624-8212. PMC 9354894. PMID 35937141.

[4] Ollerton, Niamh (April 2020). "Can't Take the TOEFL? Duolingo Might Offer an Alternative". Top Universities. Archived from the original on May 28, 2023. Retrieved May 28, 2023.

[5] Morris, Catherine (March 16, 2020). "US: more universities accepting the Duolingo English Test amid coronavirus uncertainty". The PIE News. Archived from the original on May 28, 2023. Retrieved May 28, 2023.

[6] Langenfeld, Thomas; Burstein, Jill; von Davier, Alina A. (May 9, 2022). Musso, Mariel F.; Bulut, Okan; Archer, Elizabeth (eds.). "Digital-First Learning and Assessment Systems for the 21st Century". Frontiers in Education. 7. Edited by Mohammed Saqr. doi:10.3389/feduc.2022.857604. ISSN 2504-284X. Archived from the original on January 22, 2024.

[7] "Duolingo English Test". englishtest.duolingo.com. Archived from the original on May 28, 2023. Retrieved May 28, 2023.

[8] Isaacs, Talia; Hu, Ruolin; Trenkic, Danijela; Varga, Julia (April 3, 2023). "Examining the predictive validity of the Duolingo English Test: Evidence from a major UK university". Language Testing. 40 (3): 748–770. doi:10.1177/02655322231158550. ISSN 0265-5322. S2CID 257975807.

[9] Honebeek, Talya (2024). "Which top UK universities accept the Duolingo English Test?". edvoy. Archived from the original on December 14, 2022. Retrieved December 14, 2022.

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