Khả năng ghi nhớ từ vựng và nhận thức của học sinh trung học phổ thông học tiếng Anh như ngoại ngữ khi sử dụng ứng dụng Duolingo: Nghiên cứu tại Đồng bằng sông Cửu Long

Tóm tắt

Research into Duolingo app implementation has addressed its role in English as a Foreign Language (EFL) high school students’ vocabulary retention and EFL high school students’ perceptions of it in the digital era. This paper, therefore, reports a mixed-methods approach integrating both quantitative and qualitative techniques to examine how the Duolingo app affected EFL high school students’ vocabulary retention and how they perceived the Duolingo app. Pretests, posttests, and focus-group interviews were utilized to collect data. Participants in this study were forty-eight EFL high school students in the Mekong Delta region, equally divided into a control group and an experimental group. The findings reveal that both groups improved their vocabulary retention, but students in the experimental group achieved higher results in the posttest. Therefore, using the Duolingo app can help students’ vocabulary retention. However, only a few students could increase their Word Levels. Besides, EFL high school students believed that the Duolingo app brought many benefits, which helped them enhance their English skills inside and outside the classroom. However, some challenges, such as advertisements and Internet connections, were also indicated.