THE EFFECT OF KAHOOT ON STUDENTS' VOCABULARY OF DESCRIPTIVE TEXT OF A PERSON AT THE SEVENTH GRADE STUDENT OF SMP NEGERI 5 KATINGAN TENGAH

The topic of this study is students' vocabulary mastery in descriptive texts of a person, particularly focusing on nouns and adjectives at the seventh grade of SMPN 5 Katingan Tengah. This study aims to determine whether the use of Kahoot has an effect on students' vocabulary mastery in descriptive text of a person at the seventh grade of SMPN 5 Katingan Tengah. This study employed a quantitative method with a pre-experimental one-group pre-test and post-test design.
The data were collected through vocabulary tests in the form of pre-test and post-test consisting of multiple-choice questions related to nouns and adjectives in descriptive texts of a person, particularly vocabulary about human body parts and personal characteristics, as well as a questionnaire used to identify students' responses toward the use of Kahoot during the learning process. The participants involved 17 seventh-grade students selected through total sampling due to the limited population in the research setting. The treatment was conducted through Kahoot-based learning activities that integrated interactive quizzes and visual learning materials to help students recognize, understand, and remember vocabulary more effectively. The data were analyzed using descriptive statistics to identify the students' mean scores and score improvement, while inferential statistics through normality testing and the Wilcoxon Signed Ranks Test were employed to determine the significance of the treatment effect.
The results showed that the mean score increased from 48.59 in the pre-test to 89.00 in the post-test, with a mean improvement of 40.41. The Wilcoxon test result indicated a significance value of 0.000 (p < 0.05), showing a significant difference between the pre-test and post-test scores, while the effect size was 0.88, categorized as a large effect. In addition, the questionnaire results revealed that most students gave positive responses toward the use of Kahoot, particularly in improving their interest, focus, and vocabulary retention. Therefore, it can be concluded that the use of Kahoot has a significant and strong effect on improving students' vocabulary mastery.