Ramsey L. Cardwell Dr. Ramsey Cardwell is an assessment scientist working on the Duolingo English Test. He is a former EFL teacher, and has a PhD in educational measurement with a focus on language testing.
15 de may. de 2023 ¿Qué tan difícil es el Duolingo English Test? por Sophie Wodzak y Ramsey L. Cardwell Investigación
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June 14, 2021 How difficult is the Duolingo English Test? by Sophie Wodzak and Ramsey L. Cardwell Research
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