THE EFFECTS OF DUOLINGO ON VOCABULARY RETENTION IN FIRST-YEAR ESL STUDENTS
Abstract
This study investigates the effects of Duolingo, a mobile language learning application, on vocabulary retention among first-year English as a Second Language (ESL) students. The research aims to assess whether using Duolingo as a supplementary tool enhances short-term and long-term vocabulary acquisition compared to traditional learning methods. An experimental design was employed, involving 30 first-year ESL students divided into control and experimental groups. The experimental group used Duolingo daily for four weeks, while the control group relied on textbook-based instruction. Pre-tests, post-tests, and delayed post-tests were administered to evaluate retention. The results suggest that students using Duolingo showed significantly higher vocabulary retention, indicating the app’s potential as an effective supplementary tool in ESL education.
References
1. Cepeda, N. J., Pashler, H., Vul, E., Wixted, J. T., & Rohrer, D. (2006). Distributed practice in verbal recall tasks: A review and quantitative synthesis. Psychological Bulletin, 132(3), 354–380. https://doi.org/10.1037/0033-2909.132.3.354
2. Loewen, S., Isbell, D. R., & Sporn, Z. (2020). The effectiveness of app-based language instruction for developing receptive linguistic knowledge and oral communicative ability. Foreign Language Annals, 53(2), 209–233. https://doi.org/10.1111/flan.12457
3. Nation, I. S. P. (2001). Learning vocabulary in another language. Cambridge University Press.
4. Schmitt, N. (2008). Instructed second language vocabulary learning. Language Teaching Research, 12(3), 329–363. https://doi.org/10.1177/1362168808089921
5. Vesselinov, R., & Grego, J. (2012). Duolingo effectiveness study. City University of New York.
