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Table 4.2 Schedule for Control Group
Meeting Control group
I II
III IV
V VI
VII VIII
IX X
XI Direct Instruction method
Direct Instruction method Direct Instruction method
Direct Instruction method Direct Instruction method
Direct Instruction method Direct Instruction method
Direct Instruction method Direct Instruction method
Direct Instruction method
Posttest
B. Data Description
The data are divided into 8 groups as follows: 1 The data of the students who are taught using Collaborative Writing method A
1
; 2 The data of the students who are taught using Direct Instruction method A
2
; 3 The data of the students having high creativity B
1
; 4 The data of the students having low creativity B
2
; 5 The data of the students having high creativity who are taught by using Collaborative Writing method A
1
,B
1
; 6 The data of the students having low creativity who are taught by using Collaborative Writing method
A
1
,B
2
; 7 The data of the students having high creativity who are taught by using Direct Instruction method A
2,
B
1
; and 8 The data of the students having low creativity who are taught by using Direct Instruction method A
2
,B
2
.
The data of each group presented above are described as follows: 1.
The data of students who are taught using Collaborative Writing method A
1
. The descriptive analysis of the data of A
1
shows that the score is 60 up to 86, the mean is 73, the mode is 76.62, the median is 74.81, and the standard
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deviation is 7.24 see Appendix 12. Then, the frequency distribution and histogrampolygon can be seen in the table 4.3 and figure 4.1 as follows:
Table 4.3 Frequency Distribution of Data A
1
Class Limit Class Boundaries
Midpoint Xi f
59-62 58.5-62.5
60.5 4
10 63-66
62.5-66.5 64.5
7 18
67-70 66.5-70.5
68.5 4
10
71-74 70.5-74.5
72.5 4
10 75-78
74.5-78.5
76.5
13 33
79-82 78.5-82.5
80.5 5
13 83-86
82.5-86.5 84.5
3 8
∑
40 100
Figure 4.1 Histogram and Polygon of Data A
1
2. The data of the students who are taught using Direct Instruction method A
2
The descriptive analysis of the data of A
2
shows that the score is 52 up to 82. The mean is 66, the mode is 59.85, the median is 64.17, and the standard
deviation is 8.81 see Appendix 12. Then, the frequency distribution and histogrampolygon can be seen in the table 4.4 and figure 4.2 as follows:
2 4
6 8
10 12
14
Fr e
q u
e n
cy
Class Boundaries
A1
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Table 4.4 Frequency Distribution of Data A
2
Class Limit Class Boundaries
Midpoint Xi f
48-52 47.5-52.5
50 2
5 53-57
52.5-57.5 55
4 10
58-62 57.5-62.5
60 12
30 63-67
62.5-67.5 65
3 8
68-72 67.5-72.5
70 8
20
73-77 72.5-77.5
75 6
15 78-82
77.5-82.5 80
5 13
∑
455 40
100
Figure 4.2 Histogram and Polygon of Data A
2
3. The data of the students having high creativity B
1
The descriptive analysis of the data of B
1
shows that the score is 60 up to 86. The mean is 74, the mode is 56.52, the median is 75.36, and the standard
deviation is 6.57 see Appendix 12. Then, the frequency distribution and histogrampolygon can be seen in the table 4.5 and figure 4.3.
2 4
6 8
10 12
Fr e
q u
e n
cy
Clsass Boundaries
A2
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Table 4.5 Frequency Distribution of Data B
1
Interval Class Boundaries
Midpoint Xi f
59-62 58.5-62.5
60.5 3
8 63-66
62.5-66.5 64.5
3 8
67-70 66.5-70.5
68.5 6
15 71-74
70.5-74.5 72.5
5 13
75-78 74.5-78.5
76.5 14
35 79-82
78.5-82.5
80.5 6
15 83-86
82.5-86.5 84.5
3 8
∑
507.5 40
100
Figure 4.3 Histogram and Polygon of Data B
1
4. The data of the students having low creativity B
2
The descriptive analysis of the data of B
2
shows that the score is 52 up to 82. The mean is 65, the mode is 60.50, the median is 63.21, and the standard
deviation is 8.28 see Appendix 12. Then, the frequency distribution and histogrampolygon can be seen in the table 4.6 and figure 4.4
5 10
15
Fr e
q u
e n
cy
Clsass Boundaries
B1
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Table 4.6 Frequency Distribution of Data B
2
Interval Class Boundaries
Midpoint Xi f
48-52 47.5-52.5
50 2
5 53-57
52.5-57.5 55
4 10
58-62 57.5-62.5
60 13
33 63-67
62.5-67.5 65
7 18
68-72 67.5-72.5
70 7
18 73-77
72.5-77.5 75
2 5
78-82 77.5-82.5
80 5
13 ∑
455 40
100
Figure 4.4 Histogram and Polygon of Data B
2
5. The data of the students having high creativity who are taught using
Collaborative Writing method A
1,
B
1
The descriptive analysis of the data of A
1
B
1
shows that the score is 64 up to 86. The mean is 76, the mode is 78.50, the median is 77.21 and the standard
2 4
6 8
10 12
14
Fr e
q u
e n
cy
Class Boundaries
B2
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deviation is 5.90 see Appendix 12. Then, the frequency distribution and histogrampolygon can be seen in the table 4.7 and figure 4.5.
Table 4.7 Frequency Distribution of Data A
1
B
1
Interval Class Boundaries
Midpoint Xi f
63-67 62.5-67.5
65 2
10 68-71
67.5-71.5 70
2 10
72-76 71.5-76.5
74 5
25 77-81
76.5-81.5 79
7
35 82-86
81.5-86.5 84
4 20
∑ 371,5
20 100
Figure 4.5 Histogram and Polygon of Data A
1
B
1
6. The data of the students having low creativity who are taught using
Collaborative Writing method A
1,
B
2
The descriptive analysis of the data of A
2
B
1
shows that the score is 60 up to 82. The mean is 70, the mode is 5.00, the median is 68.75, and the standard
1 2
3 4
5 6
7
Fr e
q u
e n
cy
Class Boundaries
A1,B1
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deviation is 7.52 see Appendix 12. Then, the frequency distribution and histogrampolygon can be seen in table 4.8 the figure 4.6
Table 4.8 Frequency Distribution of Data A
1,
B
2
Interval Class Boundaries
Midpoint Xi f
58-62 57.5-62.5
60 4
20 63-67
62.5-67.5 65
5 25
68-72 67.5-72.5
70 4
20 73-77
72.5-77.5 75
2 10
78-82 77.5-82.5
80 5
25 ∑
350 20
100
Figure 4.6 Histogram and Polygon of Data A
1
B
2
7. The data of the students having high creativity who are taught using Direct
Instruction method A
2
, B
1
The descriptive analysis of the data of A
1
B
2
shows that the score is 60 up to 82. The mean is 73, the mode is 72.83, the median is 82.83, and the standard
1 2
3 4
5
Fr e
q u
e n
cy
Class Boundaries
A1, B2
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deviation is 5.83 see Appendix 12. Then, the frequency distribution and histogrampolygon can be seen in the table 4.9 and figure 4.7.
Table 4.9 Frequency Distribution of Data A
2
B
1
Interval Class Boundaries
Midpoint Xi f
58-62 57.5-62.5
62 3
15 63-67
62.5-67.5 67
1 5
68-72 67.5-72.5
72 9
25 73-77
72.5-77.5 77
5 30
78-82 77.5-82.5
82 2
25 ∑
360 20
100
Figure 4.7 Histogram and Polygon of Data A
2
, B
1
8. The data of the students having low creativity who are taught using Direct
Instruction method A
2
, B
2
. The descriptive analysis of the data of A
2,
B
2
shows that the score is 52 up to 72. The mean is 60, the mode is 69, the median is 59.36, and the standard
1 2
3 4
5 6
Fr e
q u
e n
cy
Class Boundaries
A2, B1
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deviation is 5.82 see Appendix 12. Then, the frequency distribution and histogram or polygon can be seen in the table 4.10 and figure 4.8.
Table 4.10 Frequency Distribution of Data A
2
B
2
Interval Class Boundaries
Midpoint Xi f
52-56 52.5-56.5
54 6
30
57-61 56.5-61.5
59
7
35 62-66
61.5-66.5 64
4 20
67-71 66.5-71.5
69 2
10 72-76
71.5-76.5 74
1 5
∑
320 20
100
Figure 4.8 Histogram and Polygon Data A
2
B
2
C. Prerequisite Test
