CHAPTER 4. RESEARCH RESULT AND DISCUSSION
This chapter presents the description of the experimental treatment, the results of supporting data, the results of primary data, the hypothesis verification,
and the discussion.
4.1 The Description of the Treatment
In this research, there were two groups of the respondents. They were the experimental group XI PM-3 and the control group XI PM-2. As it had been
explained by the researcher in Chapter 3, the experimental group received the treatment that was teaching vocabulary by using riddles, while the control group
received no treatment. The teaching learning process was taught in two meetings for each group. The lesson plans of the teaching learning process for the
experimental and the control groups can be seen on Appendix L.
4.2 The Results of Supporting Data
The results of the supporting data of the research were obtained from the result of the interview with the English teacher and documentation.
4.2.1 The Results of Interview
The interview with the English teacher of the eleventh grade of SMKN I Jember was done on December 15
th
, 2014. The teacher taught English by using “English Book”. He used one book to teach English. The results of the interview
in detail can be seen on Appendix C.
4.2.2 The Results of Documentation
The documentation in this research was used to get the supporting data about the names of the research respondents. The total numbers of the eleventh
grade students of PM Marketing of SMKN 1 Jember in the 20142015 academic year was 108 students consisting of 3 classes. The distribution of the students in
each class can be seen in Table 4.1.
Table 4.1 The Total Number of the Eleventh Grade Students of SMKN 1 Jember 20142015 Academic Year.
No. Class
Number of Student Total
Male Female
1. XI-PM 1
14 22
36 2.
X1-PM 2 12
24 36
3. XI-PM 3
13 23
36 Total
108
The total number of the respondent was 108 students. The respondents of the experimental group were 36 students, while the respondents of the control
group were 36 students see Appendix D.
4.2.3 The Results of Homogeneity Test
The researcher used the result of the English final examination test for the odd semester of the eleventh grade students at SMKN 1 Jember as the result of the
homogeneity test. After the researcher got the data of that previous score, the researcher analyzed the data by using Anova provided in SPSS to know whether
the classes of the eleventh grade were homogeny or not. The previous score of the English final examination test for the odd semester of the eleventh grade students
at SMKN 1 Jember can be seen on Appendix E. Based on the calculation, the result of the computation statically by using
Anova could be seen that there was no significant mean difference among the classes. The mean scores from all classes were 74. The test of homogeneity of
variance also showed that the Sig. Value was 0.619. It meant that there was no significant difference between the three classes. Thus the population was
homogeneous. The result of homogeneity analysis by using Anova can be seen on Appendix F.
After the researcher knew that all the classes of the eleventh grade at SMKN 1 Jember were homogeneous, the researcher used lottery to choose the classes
which belong to experimental group and control group. Finally, two classes
chosen were XI PM-3 as the experimental group and XI PM-2 as the control group.
4.2.4 The Results of Try out Test for Vocabulary Post Test
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