The Effectiveness of Using English YouTube Videos on Students’ Vocabulary Achievement of The Eleventh Grade of SMAN 4 Bombana

Abstract

The objective of this study was to find out the effect of using English YouTube videos on students’ vocabulary achievement in the eleventh grade of SMAN 4 Bombana. English YouTube video was used as a media in the learning-teaching process. This study used a quasi-experimental design. The population was all eleven-grade students, and the samples were class XI MIA¹ as the experimental group and XI MIA² as the control group. The experimental group consisted of 24 students, while the control group consisted of 24 students. The research instrument consisted of 18 questions of a vocabulary test. In order to collect the data, the researcher gave a pre-test, taught by using English YouTube videos, and gave a post-test. The mean score of the post-test (77.58) in the experimental class was higher than the pre-test score (53.33). Meanwhile, the control class also had improvement that was too significant. The post-test score (68.62) was higher than the pre-test score (40.37). Based on the calculation of the T-test, it showed that t_count = 2.147, while t_table =2.012 at a level of = 0.05, with DF = 46. It meant that t_count was higher than t_table. Therefore, H₀ was rejected and H₁ was accepted. This could be concluded that using English YouTube videos significantly affected students’ vocabulary achievement among the eleven grade students of SMAN 4 Bombana..