The effect of group investigation method on writing news item text ability at grade X SMK Negeri 1 Batang Angkola

This research concerns with students’ problem in writing news item text at grade X SMK Negeri 1 Batang Angkola.It came from the phenomenon that was found when the researcher asked one of English teacher of grade x SMK Negeri 1 Batang Angkola about what is the students’ problem in writing that did not interested to study English and lack of vocabulary. So, the problems above to be solved by using group investigation method. This research used experimental research. The population of the research was the tenth grade of SMK Negeri 1 Batang Angkola. The total of population were 3 class. Then the sample of research were 2 class. It was taken by used normality and homogenity that were X1 (experiment class) and X2 (control class). The instrument for collecting the data was essay test. And to analysis the data the researcher used formulation of t-test. Based on the analysis of t-test showed the score of the students’ in experiment class significantly than control class, its showed from the mean score of eksperimental class was 74.63 and control class was 72.06. And the analysis of t-test was gotten t-observation 2.36 and t-table 1.67 its mean ( 2.36 > 1.67). Based on the analysis t-test, alternative hyphotesis (Ha) was accepted and zero hyphotesis(Ho) was rejected. It means there is was a significant effect of group investigation method on writing news item text ability at grade X SMK Negeri 1 Batang Angkol