Maria (Masha) Kostromitina 

Assessment Specialist, Duolingo English Test

Maria (Masha) Kostromitina is an assessment specialist at the Duolingo English Test. She received her Ph.D. in Applied Linguistics from Northern Arizona University. One of Masha’s primary research areas is fairness in high stakes English proficiency tests. She has also done research in language learners’ development of pragmatic skills. Masha’s studies have been published in top-tier journals including Studies of Second Language Acquisition and Language Testing.