THE EFFECT OF GROUP MENTORING TECHNIQUE ON STUDENTS` ACHIEVEMENT IN WRITING ANALYTICAL EXPOSITION TEXT

This study was conducted to know the effect of group mentoring technique on students’ achievement in writing analytical exposition text. It was conducted by using experimental research method. The population of the research was XI grade in the second semester at SMA N 1 Salak, Academic Year 2014/2015. Two classes were chosen randomly as the sample and were divided into two groups, experimental group and control group. The experimental group was taught by applying Group Mentoring Technique and the control group was given conventional method. The instrument used to collect the data was writing essay test. To conduct the reliability of the test, the Pearsons’ Product Formula is used, the reliability of the test was 0,79. It means the test was substantially reliable. The data were analyzed by using t-test formula. The result of this research showed that the average scores of the students in the experimental group (80,3) was significantly higher than the average scores of the students in the control group (64,6) at the level of significant α=0,05 with the degree of freedom (df) 58, with t-observed 5,867 > t-table value 2,004. It means that there is a significant effect of using Group Mentoring Technique on students’ achievement in writing analytical exposition text.