# Why did we deliberately hack the Duolingo English Test?
  
**Authors:** Mirza Basim Baig and Sophie Wodzak  
**Date:** September 2, 2021  
[Read More](https://blog.englishtest.duolingo.com/duolingo-english-test-security/)

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# Duolingo’s most popular course turned high-stakes test  
  
**Author:** Sophie Wodzak  
**Date:** July 21, 2021  
[Read More](https://blog.englishtest.duolingo.com/duolingos-most-popular-course-turned-high-stakes-test/)

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# Is the Duolingo English Test fair?  
  
**Author:** Sophie Wodzak  
**Date:** June 30, 2021  
[Read More](https://blog.englishtest.duolingo.com/fairness/)

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# Our commitments to helping refugees  
  
**Authors:** Tommy Wang and Jennifer Dewar  
**Date:** June 17, 2021  
[Read More](https://blog.englishtest.duolingo.com/our-commitments-to-helping-refugees/)

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# How difficult is the Duolingo English Test?  
  
**Authors:** Sophie Wodzak and Ramsey L. Cardwell, Ph. D.  
**Date:** June 14, 2021  
[Read More](https://blog.englishtest.duolingo.com/is-the-duolingo-english-test-hard/)

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# International education trends via the world's most accessible English test  
  
**Authors:** Mark Pavic and Jennifer Dewar  
**Date:** May 6, 2021  
[Read More](https://blog.englishtest.duolingo.com/international-education-trends-via-the-worlds-most-accessible-english-test/)

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# Born Digital: How we leveraged human-in-the-loop AI to create a more secure high-stakes test  
  
**Author:** Sophie Wodzak  
**Date:** April 23, 2021  
[Read More](https://blog.englishtest.duolingo.com/testsecurity/)

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# AQuAA: Innovative quality control for the future of testing  
  
**Author:** Sophie Wodzak  
**Date:** March 18, 2021  
[Read More](https://blog.englishtest.duolingo.com/aquaa/)

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# Congratulations to the Duolingo English Test’s 2020 Doctoral Award Winners!  
  
**Author:** Sophie Wodzak  
**Date:** December 16, 2020  
[Read More](https://blog.englishtest.duolingo.com/doctoral-award-winners-2020/)

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# Subscores: Improving how we report Duolingo English Test results  
  
**Authors:** Geoffrey T. LaFlair and Jeffrey Tousignant  
**Date:** June 8, 2020  
[Read More](https://blog.englishtest.duolingo.com/subscores-improving-how-we-report-duolingo-english-test-results-2/)

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# The Duolingo English Test: AI-driven language assessment  
  
**Authors:** Burr Settles and Geoffrey T. LaFlair  
**Date:** April 30, 2020  
[Read More](https://blog.englishtest.duolingo.com/the-duolingo-english-test-ai-driven-language-assessment/)

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# Duolingo English Test, Africa, IELTS, and CEFR  
  
**Author:** Burr Settles  
**Date:** August 14, 2015  
[Read More](https://blog.englishtest.duolingo.com/duolingo-english-test-africa-ielts-and-cefr/)