Impact of Students’ Vocabulary Level to their Reading and Writing Performance

Abstract

This study aimed to identify the impact of vocabulary level to performance in reading and writing. The study used the descriptive correlation research design to establish the relationship of the students’ vocabulary size to their reading and writing skills. Pearson's correlation coefficient (r) was used to measure the strength of relationship between the two variables- vocabulary level and reading and writing skills. Vocabulary Level Test, adapted from Nation (1990) [1], was used to measure vocabulary level, and the reading and writing final mark was used for students’ performance in reading and writing. Based on the findings, vocabulary level has significant relationship to reading and writing performance of students. The result shows that students who have average vocabulary level can achieve average performance in reading and writing courses. Vocabulary level is a valid indicator of reading and writing performance.