Daftar Isi:
  • The objectives of this study were to find out: whether or not there was a significant difference in speaking achievement of the students before and after they were taught by applying Self-Assessment, and there was a significant difference in speaking achievement between the students who were taught by applying Self-Assessment and those who were not. The sample of this study was 80 eighth grade students of SMP Negeri 13 Palembang, which were divided into control and experimental groups. In collecting the data, each group was assigned a pretest and a posttest. The data were analyzed statistically by using paired sample t-test and independent sample t-test. The result of this study showed: (1) there was a significant difference in speaking achievement of the students before and after they were taught by applying Self-Assessment; the mean difference between posttest and pretest was 8.450 and p-value=.000, and (2) there was a significant difference between the mean score of posttest of the experimental group and control group (9.800 and p-value=.000). In conclusion, there was a significant difference in speaking achievement between the students who were taught by applying Self-Assessment and those who were not. The result of this study showed that application of Self-Assessment is effective in improving students’ speaking achievement.