The Effect of Collaborative Group Discussion Method on Students’ Writing Achievement at SMAN 1 Sampara

Abstract

The aim of this study is to find out the significant effect of collaborative group discussion method on student’s writing achievement at SMA Negeri 1 Sampara.The research method used quantitative method in the form of true-experimental posttest only control design which consisted of experimental class and control class. The population of this research was the eleventh-grade science program (XI IA) students of SMA Negeri 1 Sampara, and the samples were students at XI IA 1 class and XI IA 3 class. The research data were collected by giving treatment and posttest to students in the form of writing test through analytical exposition text. The data were analyzed by SPSS 23 for Windows. The result showed that there was significant effect of collaborative group discussion method on student’s writing achievement at SMA Negeri 1 Sampara because the students’ mean score from experimental class was higher than the control class. Then, researcher concluded by comparing the Sig (2-tailed) value with the significance value α. This showed that the Sig (2-tailed) value was 0,012 indicating that there was significant effect of group discussion method on students’ writing achievement at SMA Negeri 1 Sampara. The result also showed that most of the students from experimental class had good to average criteria in writing achievement while the highest achievement on aspects of writing was the language use aspect.