The influence of 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 variables was able to explain 63.1% of the influence on dependent variables, while the remaining 36.9% was explained by other independent variables that were not included in this research.