THE EFFECT OF PLUS MINUS INTERESTING ( PMI ) METHOD ON STUDENTS' ACHIEVEMENT ON WRITING ANALYTICAL EXPOSITION ( A STUDY AT THE ELEVENTH GRADE OF STUDENS SMK NEGERI 1 PADANGSIDIMPUAN

Abstract

The purposes of this research is to find out whether there is away significant effect of plus
minus interesting method on students’ achievement in writing analytical exposition text at the
eleventh grade of students SMK Negeri 1 Padangsidimpuan. This research was conducted by using
experimental method is one group pretest-posttest design.The population of this research is all of the
eleventh grade students technique computer of SMK Negeri 1 Padangsidimpuan that consist of 71
students. Then, the sample was taken from the population by cluster sampling technique, the
technique for collecting data is by observation sheet and giving essay test and the total sample is 34
students.After calculating the data experiment analysis, it was found that the mean score of students
writing analytical exposition before taught by using plus minus interesting method is 60,75, it is
categorized “Fair”, while the mean score of students writing analytical exposition after taught by
using plus minus interesting method is 80, it is categorized “Excellent”.The alternative hypothesis
can be accepted. Wherre the result of hyphotesis test shows that t test is 10,83, while the samples are
34 students or N = 34 students. The degree of freedom (df) is N- 1 =34-1 = 33. The score df of t table
at 5% significant level from 33 is 2,03. So, from the based on the explanation above t test is higher
than t table (t test > t table= 10,83 > 2,03). It can be concluded that is a significant effect of PMI Method
on students’ achievement in writing analytical exposition text at the eleventh grade of SMK Negeri
1 Padangsidimpuan.