VOCABULARY AND GRAMMAR MASTERIES AND THEIR CORRELATION TO SPEAKING PERFORMANCE (A Study on the Second Semester Students of the English Department of Tegal Pancasakti University in 2009/2010 Academic Year)

Abstract

ABSTRACT Wildayanti, Noor Lis. 2011. Vocabulary and Grammar Masteries and Their Correlation to Speaking Performance (A Study on the Second Semester Students of the English Department of Tegal Pancasakti University in 2009/2010 Academic Year). Thesis. Linguistics. Post Graduate Program of Diponegoro University (UNDIP). Supervisor: Dr. Suwandi, M. Pd. Keywords: correlation, speaking performance, vocabulary mastery, grammar mastery This study aims at examining the correlation between students’ vocabulary mastery and their speaking performance; the correlation between students’ grammar mastery and their speaking performance; the correlation between students’ vocabulary and grammar mastery and their speaking performance of 32 English department students in Tegal Pancasakti University of the Second Semester of Academic Year 2009/2010. The participants completed a vocabulary test and a grammar test, and were administered an interview task (which constituted to measure speaking performance). The formula Pearson-Product Moment is used to analyze the data. The findings revealed that there was positive significant correlation between students’ vocabulary mastery and their speaking performance indicated by the correlation coefficient value (r) of 0.685. Students’ grammar mastery was also found to correlate positively with their speaking performance by its correlation coefficient value (r) of 0.735. Lastly, positive correlation is achieved between students’ vocabulary and grammar mastery in their speaking performance. Its value of correlation coefficient (r) was 0.752 or 75.2 %. Therefore, the development of students’ speaking performance score of one point is influenced by students’ scores of vocabulary and grammar mastery. In other words, the higher students’ vocabulary and grammar mastery are the better their speaking performance will be.