<p>This paper describes a study examining the effects of the computer-adaptive <a href="https://daanacademy.com/duolingo-english-test/" target="_blank" rel="nofollow">Duolingo English Test</a> (DET) among a small group of first and second year students in the Global Communication Department at Hiroshima Bunkyo Women’s University. This test provides a specific DET score and correlates to the widely utilized English language proficiency tests Test of English as a Foreign Language (TOEFL) and International English Language Testing System (IELTS). In addition, the DET score is aligned with the Common European Framework of Reference (CEFR). Therefore, by undergoing the DET, an examinee can gauge her English language level in a variety of milieu. In this project, qualitative data in the form of interviews and anonymous surveys as well as the quantitative data of the participants’ DET scores are examined in order to ascertain the participants’ English proficiency levels, as well as their motivation and confidence levels for studying English. The results indicate that utilizing this DET assessment can positively affect participants’ motivation for studying English and can be a beneficial tool for tracking English language progress.</p>