Improving Students’ Vocabulary Mastery through Bingo Game for Grade X of SMAN 4 Purworejo in the Academic Year of 2014/2015

Abstract

This research was aimed at improving the vocabulary mastery of Grade X students of SMAN 4 Purworejo through Bingo Game in the academic year of 2014/2015. This study was an action research study. It was done in two cycles, from 20^th of October to 29^th of November 2014. Each cycle consisted of three meetings. The steps of the research were reconnaissance, planning, action and observation and reflection. The subjects of this research were 28 students of X IIS 3 class. The data were in the form of qualitative and quantitative data. The qualitative data were collected through observing the teaching learning process, interviewing the students and the teacher, holding discussion with the teacher, and taking photographs of the teaching learning process. The quantitative data were collected from questionnaires and the students’ vocabulary score of pre-test and post-test to see the improvement of the students’ vocabulary mastery. The instruments for collecting data were interview guidelines, observations checklist, questionnaires, field notes, and a camera. The validity of the research was obtained through applying five validity criteria namely, process validity, democratic validity, dialogic validity, catalytic validity, and outcome validity. In addition, to make the data trustworthy or reliable, two kinds of triangulation (time triangulation and investigator triangulation) were used in this research. The research findings showed that vocabulary mastery of most students improved after Bingo Game was used in the teaching and learning process. It showed that the mean of students’ vocabulary score in the pre-test and post-test (64.3 to 89.1). The students’ involvement and classroom interaction during the implementation of the game were improved. It was showed in students’ enthusiasm during the game. They tried to be the first winner and it raised the competitiveness among them. In addition, the implementation of Bingo Game and the complementary actions were successful to help the students memorize and understand new words easily. In conclusion, the students’ vocabulary mastery improved through the implementation of Bingo Game.