The Effect of Duolingo Application on Students’ vocabulary Mastery at Seventh Grade of SMPN 5 Tarakan
Learning English involves skill-based learning that requires various approaches and techniques. Education today is significantly influenced by technological advancements, where in technology server as solution to address challenges in English language learning. Alongside the advancements in English language learning tools, Duolingo complements modern language learning through mobile phones. This research aimed to explore the use of the Duolingo application in enhancing vocabulary among seventh-grade student at SMP Negeri 5 Tarakan. This study employs an experimental method with a pre-experimental one-group pre-test and post-test design. The research sample consists of 30 students selected through purposive sampling. The research instrument used was a vocabulary test to assess student’s initial and post-treatment abilities. Based on data analysis, an improvement in student’s score between the pre-test and post-test was observed. From the findings, it can be concluded that using Duolingo can enhance vocabulary mastery among seventh-grade students at SMP Negeri 5 Tarakan. This research is expected to inform teachers and students about conducting intensive language learning practices form using the Duolingo application.