The Correlation Between Student Achievement in Vocabulary and Reading Comprehension at the Eighth Grade Students of SMP Swasta Santo Yoseph Medan

This study was conducted to find out the correlation between of students' vocabulary achievement and their reading comprehension achievement in the eighth grade of SMP Swasta Santo Yoseph Medan in the academic year 2024/2025. which consists of four classes. The researcher randomly selected 40 students as the sample for this study. Data collection was conducted using a test, which aimed to assess students' vocabulary achievement as well as their reading comprehension skills. The data analysis involved several statistical techniques, including a normality test, linear regression analysis, and Pearson's Product Moment correlation, all processed through the Statistical Product and Service Solution (SPSS) software. The hypothesis testing revealed a correlation coefficient of 0.668 at a 5% significance level. Given that the calculated r-value exceeds the critical r-value (0.668 > 0.312), the null hypothesis (Ho) is rejected. This indicates a significant correlation between students' vocabulary achievement and their reading comprehension performance among eighth-grade students at SMP Swasta Santo Yoseph Medan in the 2024/2025 academic year. It implies that when students get high score in vocabulary, they tend to have high score in reading comprehension as well.