This study aimed to investigate the effectiveness of humorous comic strips in improving the vocabulary mastery of eighth-grade students at SMPN 7 Palopo. Because it helps students learn and apply English effectively, vocabulary is recognized as an essential part of language learning. A pre-experimental one-group pre-test and post-test design utilized in this quantitative study. hirty students from class VIII-B were selected as the sample using purposive sampling. Based on the results, the mean score improves from 62.67 in the pre-test to 78.83 in the post-test. The use of humorous comic strips significantly improved students' vocabulary mastery, based on from paired sample t-test, and this showed a significance value of 0.000 (p < 0.05). Furthermore, the effect size analysis showed a Cohen’s d value of 1.02, which was categorized as a large effect size.The findings indicate that humorous comic strips provide meaningful, contextual, and enjoyable learning experiences that support vocabulary retention and student engagement.
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