Masha Kostromitina, Ph.D. - Test Center

Recent Posts

1. What is face validity in language assessment? — Masha Kostromitina, Ph.D. (January 26, 2026)
2. New research in Review of Education: Is predictive validity enough to measure student success? — Masha Kostromitina, Ph.D. (August 22, 2025)
3. How does the DET measure speaking? — Masha Kostromitina, Ph.D. (July 7, 2025)
4. One test, many benefits: Why students and counsellors prefer the Duolingo English Test — Masha Kostromitina, Ph.D. (May 15, 2025)
5. Ask Dr. Masha: How do test takers feel about accents on high stakes English tests? — Masha Kostromitina, Ph.D. (April 24, 2025)
6. How does the DET measure writing? — Masha Kostromitina, Ph.D. (March 19, 2025)
7. Is the Duolingo English Test aligned with the CEFR? — Masha Kostromitina, Ph.D. (October 17, 2024)
8. How the Duolingo English Test can help institutions diversify — Masha Kostromitina, Ph.D. (September 24, 2024)
9. Is the Duolingo English Test valid? — Masha Kostromitina, Ph.D. (September 12, 2024)
10. How well does the Duolingo English Test predict academic success? — Masha Kostromitina, Ph.D. (August 26, 2024)
11. Is this normal? Parsing jagged profiles in language assessment — Masha Kostromitina, Ph.D. (March 12, 2024)
12. The evolution of the Duolingo English Test — Masha Kostromitina, Ph.D. and Sophie Wodzak (February 7, 2024)