The Influence of Students’ Native Language on The Mastery of Preposition System (A Study at SMP Negeri 8 Banda Aceh)

This thesis is entitled “The Influence of Students’ Native Language on The Mastery of Preposition System”. English Preposition is very different from Indonesian’s prepositions. Sometimes, students often make mistakes in the use of English prepositions. Therefore, this research explores how the second year students’ ability of SMPN 8 Banda Aceh in Mastering English prepositions and what the difficulties the second year students’ of SMPN 8 Banda Aceh may face in Mastering English prepositions. The population is the entire second grade of SMPN 8 Banda Aceh. The researcher chooses class VIII-6 as the participant in experimental class. To obtain the data, the researcher used test instrument. The data was analyzed through quantitative analysis by using SPSS. Mean rank for post-test =25, 84 higher than mean rank for pre-test score = 13, 16. By using Mann Whitney test obtained Significance 0,000. Based on the criteria of hypothesis testing Significance = 0,000 < α = 0,05 it means Ho rejected, so score of data pre-test and post-test students have different mean. By using one-way test obtained the Significance score for post test 0,000. Based on the criteria of hypothesis testing the Significance = 0,000 < α = 0, 05 it means the mean post test score of students were higher than the mean score of pre-test students. In other words, the results obtained in this study have a significance effect in improving student learning outcomes. In addition, the concept of difference can cause a student to have difficulty in studying the preposition system so that students make mistakes in using a foreign language, which is influenced by mother tongue.