CD Skripsi
the correlation between vocabulary mastery and writing descriptive texts of grade x students of sman 2 dumai
This study investigates the correlation between vocabulary mastery and
the ability to write descriptive texts among Grade X students at SMAN 2 Dumai.
The research aims to determine the extent of students’ vocabulary knowledge,
their proficiency in writing descriptive texts, and whether a significant
relationship exists between the two variables. Employing a quantitative
correlational research design, data were collected from 37 students selected
through cluster random sampling. Two instruments were used: a multiple-choice
vocabulary test and a descriptive text writing test. The results showed that
students’ vocabulary mastery was generally at a sufficient level (M = 62.11, SD =
11.96), while their writing ability was slightly higher (M = 68.79, SD = 7.47).
Statistical analysis using Spearman’s rho revealed a moderate positive
correlation (r = 0.543, p = 0.001) between vocabulary mastery and writing
ability. Furthermore, the coefficient of determination (R² = 0.294) indicates that
vocabulary mastery accounted for 29.4% of the variance in students’ writing
scores. These findings highlight the importance of vocabulary in developing
writing skills, especially in producing descriptive texts. However, they also
suggest that writing performance is influenced by multiple factors beyond
vocabulary alone, such as grammar, fluency, and organization. This research
contributes to the development of English language teaching by emphasizing the
integration of vocabulary instruction within broader writing pedagogy.
Keywords: Vocabulary Mastery, Writing Ability, Descriptive Text, Correlation,
Grade X
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