Alina von Davier, PhD. is a Chief of Assessment at Duolingo. Von Davier and her team operate at the forefront of Computational Psychometrics. Her current research interests involve developing psychometric methodologies in support of digital-first assessments, such as the Duolingo English Test, using techniques incorporating machine learning, data mining, Bayesian inference methods, and stochastic processes.
Two publications, a co-edited volume on Computerized Multistage Testing (2014) and an edited volume on test equating, Statistical Models for Test Equating, Scaling, and Linking (2011) were selected as the winners of the Division D Significant Contribution to Educational Measurement and Research Methodology award at American Educational Research Association (AERA). Additionally, she has written and/or co-edited five other books and volumes on statistics and psychometric topics. She has received significant grants and contracts as a Principal Investigator. In 2020, von Davier was awarded a Career Award from the Association of Test Publishers (ATP).
Prior to Duolingo she was a Chief Officer at ACT, where she led ACTNext, a large R&D-innovation unit. Before that von Davier was a Senior Research Director at Educational Testing Service (ETS) where she led the Computational Psychometrics Research Center. Previor to that, she led the Center for Psychometrics for International Tests, where she was responsible for both the psychometrics in support of international tests, TOEFL® and TOEIC®, and the scores reported to millions of test takers annually. Von Davier is currently the president of the International Association of Computerized Adaptive Testing (IACAT) and she serves on the board of directors for the Association of Test Publishers (ATP).
She earned her doctorate in mathematics from Otto von Guericke University of Magdeburg, Germany, and her master of science degree in mathematics from the University of Bucharest, Romania.
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