HUBUNGAN PENGUASAAN KOSAKATA BAHASA INDONESIA DENGAN KEMAMPUAN MENULIS KARANGAN SEDERHANA SISWA KELAS III SD DI KABUPATEN PESISIR SELATAN

Abstract

This study was motivated by the low ability of elementary school students to write simple essays, a phenomenon suspected to be linked to limited mastery of Indonesian vocabulary. The study aimed to describe the level of Indonesian vocabulary mastery, describe the ability to write simple anti-bullying essays, and analyze the relationship between Indonesian vocabulary mastery and simple essay writing skills among third-grade elementary school students in Pesisir Selatan Regency. A quantitative approach with a correlational research design was employed. The study population consisted of 89 third-grade students from three elementary schools in Pesisir Selatan Regency; a saturated sampling technique was used, meaning the entire population served as the sample. Research instruments included a 30-item multiple-choice test to measure vocabulary mastery and a simple essay writing task using student worksheets. Data analysis involved descriptive analysis, normality testing, linearity testing, Pearson Product-Moment correlation analysis, and hypothesis testing using IBM SPSS 26. The results indicated that the data were normally distributed (Sig. = 0.141) and exhibited a linear relationship (Sig. = 0.559). The correlation analysis yielded a Pearson Correlation value of 0.402 with a Sig. (2-tailed) value of 0.000 (p < 0.05), demonstrating a significant relationship of moderate strength between Indonesian vocabulary mastery and simple essay writing skills among the third-grade students. The higher the students' vocabulary mastery, the better their ability to write simple essays.