THE EFFECTIVENESS OF DUOLINGO APP ON STUDENTS' MOTIVATION IN LEARNING ENGLISH

Abstract

The purpose of this study is to determine the empirical evidence of the effectiveness of using Duolingo application on students' motivation in learning English. The formulation of the problem in this research is whether the use of duolingo has a significant effect on students' ability to master vocabulary. The method in this study uses pretest and posttest as data collection instruments. The data analysis technique of this research is (1) normality test (2) homogeneity test (3) hypothesis test in the form of t-test. Hypothesis testing uses the t test formula, which is preceded by a normality test and homogeneity test. the results of the t test showed that there was a significant effect, the value of sig (2- tailed) = 0.071<0.05. Therefore, H0 was rejected and Ha was accepted. The result indicated that using Duolingo is effective through students’ vocabulary mastery and had a moderate effect at the students SMA Negeri 3 Tanjung Balai in the academic year of 2022/2023.