Pengaruh Penguasaan Kosa Kata dan Tata Bahasa Indonesia terhadap Kemampuan Menulis Eksposisi

Abstract

This study aims to: (1) determine whether or not there is an influence of vocabulary mastery on the ability to write expositions of class X students of SMK Negeri Bekasi; (2) determine whether or not there is an influence of Indonesian grammar mastery on the ability to write expositions of class X students of SMK Negeri Bekasi; and (3) determine whether or not there is an influence of Indonesian vocabulary and grammar mastery on the ability to write expositions of class X students of SMK Negeri Bekasi. The subjects of the study were class X students of SMK Negeri Bekasi by taking a sample of 90 students. The sampling technique used stratified random sampling technique. Data collection on vocabulary, grammar, and writing expositions was carried out with an ability test. Item validity and reliability tests were carried out using the SPSS program. The data analysis techniques used were product moment correlation analysis and multiple linear regression analysis. The level of error of the analysis results was determined at 5%. The results of the study showed that: (1). There is a significant influence of vocabulary and grammar mastery together on the ability to write exposition texts of SMK Negeri students in Bekasi Regency. This is evidenced by the Sig. value obtained. = 0.000 < 0.05 and Fcount = 42.721. (2). There is a significant influence of vocabulary mastery on the ability to write expository texts of students at State Vocational Schools in Bekasi Regency. This is proven by the Sig. = 0.000 < 0.05 and tcount = 3.770. (3). There is a significant influence of grammar mastery on the ability to write expository texts of students at State Vocational Schools in Bekasi Regency. This is proven by the Sig. = 0.000 < 0.05 and tcount = 5.083.