THE INFLUENCE OF STUDENTS’ VOCABULARY MASTERY TOWARDS ENGLISH SPEAKING SKILL AT THE TENTH GRADE SCIENCE CLASS OF STATE ISLAMIC SENIOR HIGH SCHOOL (MAN) 2 PARIGI

Abstract

This research aimed to find out the influence of students’ vocabulary mastery towards English speaking skill at the tenth grade science class of MAN 2 Parigi. This research used an explanatory research design. This research was conducted at the tenth grade science class of MAN 2 Parigi. The population in this research was all students at the tenth grade science class of MAN 2 Parigi for the academic year 2021/2022. In determining the sample, the researcher used simple random sampling technique of 30 students. The instrument used in data collection was multiple choice test and speaking test, and the data anlysis used simple linier regression .The research question of this research is “Is there any influence  between students’ vocabulary mastery towards English speaking skill at the tenth grade science class of MAN 2 Parigi?”. The result of this research showed that the t-test was 4.310, while the t-table was 1.701. It means that the score of t-test was higher than t-table. It can be concluded that there was an influence between the variable students’ vocabulary mastery(X) towards English speaking skill(Y). Therefore, the alternative hypothesis (Ha) was accepted. The result of coefficient of determination test (R2), the value of R square was 0.631 showed that the independent variable was able to explain 63.1% of the influence on dependent variable, while the remaining 36.9% was explained by other independent variables that were not included in this research. Students should make optimal use of study time both at school and at home. Then students must improve their English vocabulary mastery by diligently reading books, and practicing speaking by using English so that their speaking skill also improve.