The effect of diary writing to students’ writing ability at grade VIII of SMP N 2 Padangsidimpuan

In this research, researcher found students ability in writing were: 1) Students had lack of vocabulary, 2) Students lack of ideas, students are difficulties to express their idea to use the good sentence about their experience writing, 3) Students were lack motivation and attention about the important of writing. The purpose of this research was to examine the significant effect of learning using diary writing to students’ writing ability at grade VIII of SMP N 2 Padangsidimpuan. The approach used in this research was experimental esearch. Population in this research was 283 students and sample of this research was 45 students. Researcher choose two classes as sample using normality and homogeneity test. They were VIII-9 as experimental class was 24 students and VIII-10 as control class was 21 students. In this research, researcher gave pre-test and post-test in writing ability. The data was derived from pre-test and post-test. After the data have been analyzed experimental class used diary writing and control class used conventional. The researcher found mean score of experimental class before using diary writing was 41.25 and mean score after using diary writing was 72.67. The effect of diary writing to students writing ability was 3.31 with ttable is lower than tcount (3.31>2.021). It means Ha was accepted and H0 was rejected so there was significant Effect of Diary Writing to Students’ Writing Ability at Grade VIII of SMP N 2 Padangsidimpuan