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CHAPTER IV
RESEARCH
FINDINGS
A. The Description of Data
This research was done in two classes, the experiment class was VIII-D and the controlled class was VIII-C. The writer employed cooperative learning
especially using Jigsaw technique in experiment class and without using cooperative learning in controlled class.
This writer started the research by giving the same pre-test in experiment class and also in controlled class. The research was also followed by the teaching
and learning activities for four meetings which were conducted in each class. Afterwards, the post-test was given to both experiment class and also controlled
class. The form test of pre-test and post-test were multiple choice item and it was consists of thirty 30 questions. The pre-test and post-test should be done by the
students in forty-five 45 minutes in both of the two classes. After getting the post-
test‟s result, the writer made a calculation from both of the tests. Below is the more detailed description about the pre-test score, post-
test score and the gained score.
1. Pre-test Score
The writer has calculated the result of pre-test scores in both of the two classes and the description of pre-test scores of experiment class and controlled class will
be explained in table 4.1. The table consists of three columns; the first column showed the students‟ identification number. It means the amount of students‟
identification number in both experiment and controlled class is 68 students and each of the class has 34 students. The second column showed the pre-test students
in experiment class, while the third column showed the pre-test scores of students in controlled class.
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Table 4.1
The Students‟ Score of Pre-test in Experiment Class VIII-D and Controlled Class VIII-C
Students Experiment Class
Controlled Class
1 43
50 2
76 50
3 50
60 4
36 50
5 66
56 6
80 60
7 40
40 8
60 63
9 56
73 10
73 73
11 66
80 12
63 70
13 86
76 14
30 86
15 50
93 16
73 60
17 60
40 18
40 63
19 63
53 20
43 63
21 53
50 22
50 66
23 66
50 24
30 60
25 76
50 26
63 60
27 53
60 28
63 40
29 36
43 30
73 40
31 43
83 32
40 66
33 60
53 34
66 66
∑ 1926
2046 Mean
56.647059 60.176471
Minimum 30
40 Maximum
86 93
Median 60
60
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The table showed the pre-test score of experiment class and controlled class. The pre-test was given on the first meeting before giving the treatment and
based on the table 4.1, it can be seen that the average score of pre-test in experiment class was 56.647, the highest score of experiment class was 86 and the
lowest score of experiment class was 30. Meanwhile, the average score of pre-test of controlled class was 60.176
with the highest score of pre-test was 93 and the lowest score of pre-test was 40. Seeing the calculation on the table above, it can be concluded that the average
score of pre-test in controlled class was higher than the average score of pre-test in experiment class.
2. The Post-test Score
The post test was given in both of the two classes after the writer explained the material on the fourth meeting. The following table table 4.2
showed the comparison of students‟ post test scores between the experiment class and the controlled class.
The table consists of three columns, and the first column showed the students‟ identification number. The amount of students‟ identification number in
both experiment and controlled class is 68 students and each of the class has 34 students. The second column showed the post-test students in experiment class,
while the third column showed the post-test scores of students in controlled class. In order to make the table easy to understand, the writer presented the
table 4.2 on the next page.
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