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CHAPTER IV RESEARCH FINDING and INTERPRETATION
A. The Description of Data
To know the result of this experiment, the writer collected the students’ score in the pre-test and post-test from the two classes. The variable
X represented the result of pre-test and post test from the experiment class and the variable Y is the result of pre-test and post-test in the controlled class.
1. The Data of Experiment Class
Based on the data gather from the pre-test and post-test in the experiment class, it could be seen that from 40 students in the experiment
class, the mean of the pre-test is 73.2. The data shows that the lowest score achieved by students is 48 and the highest score in pre-test is 78. After
giving treatment by using card games, the writer conducted a post-test to know the effectiveness of using card games in teaching vocabulary. The
highest score in the post-test is 96 achieved by four students and the lowest score is 78 and the mean of the post-test is 87.6. So, the writer calculates the
mean of gained score from the experiment class is 14.4. The data shows student’s achievement score after gained the treatment was increased.
Further details about the students score will be presented on the appendix 12.
2. The Data of Control Class
According to the data from students’ pre-test and post-test in the
control class, the mean of the pre-test is 72.35. The data shows that the lowest score achieved by students is 48 and the highest score in pre-test is
78, it was the same with the score achieved by students’ in the experiment
class. In the end of the research, the writer conducted a post-test. The data shows the lowest score is 78 and the highest score in the post-test is 96
achieved by one student. Meanwhile, the mean of the post-test is 80.85. So, the writer calculates the mean of gained score from the experiment class is
8.5; it is lower than the mean of gained score from the experiment class. Further details about the students score will be presented on the appendix
13.
B. The Analysis of Data
The writer use statistic calculation to find empirical evidence and to ease the writer in hypotheses testing. The writer drew a table consist of six
columns. The first column score showed the score interval, the second column f showed the frequency, the third column
̅ consist of the mean of
the post-test score, the fourth column , the fifth column showed
which was resulted from the multiplication of f and , the last column
was the multiplication of and f. this table will be used to
calculated the mean, deviations standard and standard errors of variable X.
Table 4.1 Calculation table of variable
X Experiment Class
Score f
X 99-95
4 +2
+8 16
94-90 12
+1 +12
12 89-85
13 87,6
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