Thesis #153733

Fina Nurdiana 2025. “The Role of Code-Mixing in TikTok Content: How Mixed Language Videos Affect Students’ Vocabulary Growth at SMAN 1 SOJOL”. Skripsi. English Education Study Program, Language and Art Education Departement, Teacher Training and Education Faculty, Under the Supervision of Muhammad Arid and Wahyudin.
This study investigates the effect of TikTok content containing English–Indonesian code-mixing on vocabulary development of students at SMAN 1 Sojol. Using a quantitative pre-experimental design with a one-group pre-test and post-test, 27 students from class X-C were selected through purposive sampling. Vocabulary tests and classroom observations were employed as instruments, and data were analyzed using descriptive statistics and the Wilcoxon Signed-Rank Test. The findings revealed a significant improvement in students’ vocabulary mastery, with the mean score increasing from 57.78 (pre-test) to 74.63 (post-test), representing an average gain of 16.85 points, and a p-value of 0.000 (<0.05). These results indicate that exposure to code-mixed TikTok videos effectively enhances vocabulary acquisition by providing contextual, engaging, and multimodal language input. Therefore, TikTok can serve as an effective supplementary educational tool that combines entertainment and learning, fostering both comprehension and motivation in English vocabulary development.
Key Words: Code-Mixing, TikTok Content, Mixed Language Videos, Vocabulary Growth