24. E-24
13 24.
C-24 10
25. E-25
10 25.
C-25 7
26. E-26
18 26.
C-26 -8
27. E-27
11 27.
C-27 4
28. E-28
25 28.
C-28 15
29. E-29
5 29.
E-29 -3
30. E-30
14 30.
E-30 -8
N = 30 ∑ X = 404
N = 30 ∑ Y = 138
Mean X 13.46
Mean Y 4.6
Table 4.3 shows that -3 was the lowest students’ gain score in experimental
class and 25 the highest students’ gain score in experimental class while -8 was the
lowest students’ gain score in controlled class and 18 the highest students’ gain score
in controlled class. In addition, 404 was the total students’ gain score in experimental
class and 138 was the total students’ gain score in controlled class. The experimental
class has the average score of 13.46 and the controlled class has the average score of 4.6.
4. The Frequency Distribution of the Experimental Class
a. Pre-test score of the experimental class
Table 4.4 The Frequency Distribution of the pre-test of Experimental Class
No. Interval
Low Class Boundary
Up Class Boundary
Frequency Absolute Relative
1. 53-57
52.5 57.5
5 16.66
2. 58-62
57.5 62.5
4 13.33
3 63-67
62.5 67.5
7 23.33
4. 68-72
67.5 72.5
4 13.33
5. 73-77
72.5 77.5
7 23.33
6. 78-82
77.5 82.5
3 10
∑ 30
100
Figure 4.1 Diagram of frequency distribution of the pre-test score of the experimental class
The data of the pre-test score of the experimental class presented into frequency distribution table and diagram form. The classification of the data
was made based on the length of interval P, number of classes K, and range R. The table 4.4 shows that the length of the interval was 5 and the numbers
of class interval were 6. The up class boundary of the first class interval was 57.5 and the up class boundary of the last interval was 82.5. The total numbers
of students were 30. Moreover, the most frequency appearance on the frequency distributed was the score between 63-67 and 73-77 with the number
of absolute frequency 7 and the relative frequency 23.33 . In addition, the least appearance of score was on interval 78-82 with the number of absolute
1 2
3 4
5 6
7
53-57 58-62
63-67 68-72
73-77 78-82
Class Interval
Absolute Frequency