The Use of Quizlet to Enhance English as a Foreign Language Learners’ Lexical Study and Retention

Lap Trinh Quoc, Can Tho University, Vietnam
Ngoc Dung To Thai, Can Tho University, Vietnam
Tuan Le Cong*, Can Tho University, Vietnam
Hong Nga Ngo Huynh, Can Tho University, Vietnam
Thao Le Thanh, Can Tho University, Vietnam

https://doi.org/10.9743/JEO.2026.23.1.2

Abstract

The importance of vocabulary in language learning cannot be overstated, and technology integration in English language teaching, particularly in vocabulary development, has become increasingly prevalent. With gamified features, language learning apps can attract and motivate users; however, there is little empirical evidence on their effectiveness in enhancing learners’ achievement. Thus, this study aimed to examine the impact of Quizlet, a popular web-based and mobile application for language learning, on the vocabulary learning and retention of Vietnamese tenth-grade EFL students. Using a quasi-experimental design, the study recruited 64 participants who were divided into two groups: an experimental group studying vocabulary with Quizlet and a control group using traditional vocabulary notebooks. Both groups received the same instruction related to three learning units in their textbook and were assessed with vocabulary tests at the beginning and end of, and four weeks after, the intervention. Contrary to our hypothesis, the results showed no significant difference in vocabulary gains between the experimental and control groups. Despite the widespread popularity of Quizlet among language learners, we found that its use in isolation may not lead to improved vocabulary learning outcomes. Further research is needed to explore the factors that affect the effectiveness of technology-based vocabulary learning activities in EFL contexts.

 Keywords: effects of Quizlet, MALL, vocabulary learning, vocabulary retention

*Corresponding Author: lctuan@ctu.edu.vn