<![CDATA[The objective of the research is to analyze the effect of the using Riddle Technique to increase the students’ vocabulary mastery. This research is conducted in SMA Swasta Kartika 1-4 Pematangsiantar. The population of this research is class X at SMA Swasta Kartika Pematangsiantar. In which total class X are 6 classes as many as totally is 228 students. In this research, the researcher uses random sampling. the sample of this research is students of X IS-1at SMA Swasta Kartika 1-4 Pematangsiantar, as many as 38 students and this research was just conducted one class with two cycle. This research method use a quantitative method and was designed in a Classroom Action Research. The focus of this research is intended to answer the problem about teaching vocabulary by using riddle technique to the tenth IS-1 grade students of SMA Swasta Kartika Pematangsiantar is effective or not. In this part, the data is calculated to show the total of score of pre-test and post-test, to show the avarage score of pre-test and post-test, to show the standart deviation and to show the significant difference.From the data analysis above the total score of pre-test is 1911 and the total score of post-test I is 3169. The avarage of post-test I is 83,39. Then the researcher do the post-test II and the total score is 3437. The avarage of the post-test II is 90,45. The value of mean score different is 7,06. The value of t-test is 9,29, the standart deviation is 8 and the significant difference is 0,9.Based on the result of the data analysis, it was obtained that there is difference of post-test I and post-test II namely : the mean score different is 7,06, t-test is 9,29, the standart deviation is 8 and the significant difference is 0,9. It means that the use of riddles technique is effective for teaching vocabulary to the tenth grade IS-1 SMA Swasta Kartika Pematangsiantar. From the result of the research can be conclude that riddle technique can give effect to increase students’ vocabulary mastery in describing people]]>
