Abstract:

The main purpose of this study is to investigate the effects of Quizlet online vocabulary application on vocabulary learning skills and attitudes towards English course. The pretest-posttest control group quasi-experimental design was used in the study. The study group consisted of 71 ninth grade students who were studying in Eskişehir in the 2018-2019 academic year. English Language Attitude Scale and Vocabulary Test were used to collect data. In the experimental and control groups, a total of eight lessons were conducted in four weeks. The data were collected before and after the implementation phase and analyzed by quantitative and descriptive analysis. The vocabulary post-test and retention test scores of the experimental group were significantly higher than the control group (p<0.05). The retention test in the experimental group showed a significant increase compared to the post-test, whereas a significant decrease was found in the control group (p<0.05). On the other hand, the positive attitude towards the English course showed a significant increase in the experimental group (p<0.05). However, there was no significant difference in the control group. In addition, the Quizlet application has made the lesson more fun, and it has increased the interest and motivation of the students, and facilitated vocabulary learning. Quizlet online vocabulary practice makes an important contribution to students’ vocabulary learning, the persistence of the vocabulary learned, and to developing positive attitudes towards English.

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