The Effect of Watching TED-Ed Videos to Enhance Students' Vocabulary Mastery at MA Muhammadiyah Pekanbaru

Abstract

This study aimed to determine the effect of watching TED-Ed videos on students’ vocabulary mastery at MA Muhammadiyah Pekanbaru. This research used a quantitative approach with a quasi-experimental design involving two classes: an experimental class and a control class. The population consisted of eleventh-grade students, with a total sample of 40 students selected through total sampling. The data were collected using pre-test and post-test vocabulary tests consisting of multiple-choice items to measure students’ vocabulary understanding. The results showed that the mean score of the experimental class increased from 58.75 (pre-test) to 81.25 (post-test), while the control class improved from 53.65 to 62.25. The hypothesis testing using an independent samples t-test revealed a significance value of 0.000, which is lower than 0.05. This indicates that there is a significant effect of watching TED-Ed videos on students’ vocabulary mastery. The improvement occurred because the use of audiovisual media helped students understand vocabulary in context, enhanced memory retention, and increased learning motivation. Therefore, it can be concluded that TED-Ed videos are effective in enhancing students’ vocabulary mastery and can be used as an alternative learning media in English language teaching, especially in creating a more interactive, engaging, and meaningful learning environment.