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CHAPTER IV FINDINGS OF THE STUDY
A.
The Description of the Data
After students‘ pretest and posttest scores were gotten from both the
experimental X and control classes Y, the students‘ gained scores could also be
founded by reducing the students‘ posttest scores with pretest scores. The result of
those scores was showed as follow.
Table 4.1 The Scores of Students’ Tests in the Experimental X and Control Classes Y
NIS X
Pretest X
Posttest X
Gained Score X
NIS Y
Pretest Y
Posttest Y
Gained Score Y
1 48
84 36
1 48
68 20
2 32
92 60
2 60
76 16
3 32
96 64
3 24
68 44
4 40
96 56
4 28
36 8
5 24
68 44
5 60
72 12
6 44
92 48
6 56
68 12
7 40
96 56
7 60
84 24
8 56
80 24
8 21
28 7
9 24
88 64
9 52
80 28
A complete data is available at appendix 4, page 96-97 40.86 86.92
46.05 48.03 68.97
20.95
From the table above, there were three things that could be described more detailed below. They were the descriptions
of students‘ pretest scores, students‘ posttest scores, and students‘ gained scores as follows.
1. The Description of Students’ Pretest Scores
The table 4.1 above showed that the students‘ average pretest scores in the
experimental class X was 40.86; while the students‘ average pretest score in the
control class Y was 48.03. Such scores expressed that the initial students‘
knowledge about past tense in the control class Y was higher than those in the experimental class X. In this case, difference was about 7.17 points. To prove it
more clearly, table 4.2 was added as follow.
Table 4.2 Table
frequency of students’ pretest in the experimental X and control classes Y
Score X Frequency X
Score Y Frequency Y
16-25 6
21-27 5
26-35 8
28-34 2
36-45 10
35-41 4
46-55 6
42-48 3
56-65 5
49-55 9
66-75 1
56-62 10
76-85 1
63-69 4
Total 37
Total 37
The table 4.2 gave information about the most frequent pretest score that students got in the experimental X and control classes Y. In the experimental
class X, most of students got scores which fell into interval 36-45. The number of the students which got such score was 10 students. While in the control class
Y, most of students got score in the interval 56-62. The total students which got such score were 10 students. Such information proved that most of students in the
control class Y had much more initial past tense knowledge than those in the experimental class X.
2. The Description of Students’ Posttest Scores
N ot only showing the students‘ pretest scores, table 4.1 also showed the
students‘ posttest scores both in the experimental X and control class Y. In the
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