@thesis{thesis,
		author={Aminah Ari  and Busman },
		title ={THE EFFECT OF GROUP MENTORING TECHNIQUE ON STUDENTS ACHIEVEMENT IN WRITING HORTATORY EXPOSITION},
		year={2014},
		url={http://digilib.unimed.ac.id/15928/},
		abstract={This study aims to discover the effect of applying Group Mentoring Technique on Students Achievement in writing Hortatory Exposition. It was conducted by using experimental research design. This population was the 175 grade XI students of SMA Negeri 6 Medan. The sample of the research was two classes divided into two groups, experimental and control group which were chosen by using random sampling technique. The Grade XI IPA 3 as Experimental Group was taught by using Group Mentoring Technique and grade XI IPA 1 as control group was taught by using Lecturing Method. The instrument used to collect the data was by asking the students to write a Hortatory Exposition. Based on the result of the data analysis, it was concluded that using  Group Mentoring Technique significantly affect the students ability in writing hortatory exposition (t-calculated > t-table, p=0.05). The using Group Mentoring Technique made the students write hortatory exposition correctly than by using Lecturing Method. The calculation of t-test is 2.07 > 1.99 with df 68 and the level of significance 0.05. It means that the using Group Mentoring Technique has significant effect on writing hortatory exposition.}
		}