Abstract
This study aims to investigate the effectiveness of using SMS (Short Message Service) technology in vocabulary learning in an EFL university context. Data were collected through vocabulary tests and survey including in-depth interview from 62 students in three English classes. The students in the control group had a lesson only in class while the students in the two experimental groups received SMS text messages. The difference between the experimental group 1 and 2 was interactivity. The analysis of the data revealed that students who learned vocabulary through SMS improved their vocabulary knowledge more than those who did not. In regard to the interactivity effect within the SMS groups, the results showed that the students with interactivity learned significantly more words than those without. Based on the results of the survey and interview, the students in the experimental groups showed positive feedback toward using SMS in vocabulary learning. The results of the study lead to instructional implications for teachers and students to use m-learning appropriately for effective vocabulary learning. The study also discusses limitations and suggestions for the future research to apply SMS into vocabulary learning in the Korean EFL settings.
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