The Influence Of Using Crossword Puzzle Game Toward English Vocabulary Mastery at 10th Grade Students of SMA Negeri 4 Palu

The research was motivated by the problems that the researcher found at SMA Negeri 4 Palu, students are having trouble in learning process.There were 26 students of the 389 populations devided into two classes, 13 of the experimental class and control class. This research did seven meetings that were in first meeting pretest, five meetings for treatment, and the ended postest. In the experimental class, the researcher applied crossword puzzle game as treatment and in control class, the learning process was based on the curriculum applied by the school. The data collection the researcher used tests. The researcher took the sample by using random sampling and determind that IPA 3 as experimental class and IPA 4 as control class.The instrumets of data collection were pretest and postest. The pretest was used to measure prior knowledge of the students and the postest was used to measure the development of the students’ knowledge after the treatment. The t-test was analyzed to compare the mean scores of both classes. There are a significant different of pretest score of the experimental class (89.92) and control class (83.84), while postest score (95.38) of experimental class, and (88.08) of control class. The level of significance was set up at 0.05 with 24 degree of freedom (df = 13+13-2=24). The result of data analysis indicates that t-counted (0.641) is higher than t-table (0.028). It means that the hypothesis was accepted. Thus, there is an influence of using crossword puzzle game toward English vocabulary mastery at tenth grade students of SMA Negeri 4 Palu.