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is 45.3, the median is 45.25, and the standard deviation is 3.1. The frequency distribution of this group can be seen on Table 10 and the histogram and
polygon of the frequency distribution can be seen on Figure 6.
Table 11. The Frequency Distribution of the Post-test Scores of the Control Group Having Low Learning Motivation A
2
B
2
.
No. Interval Class
Absolute Frequency Relative Frequency
1. 38-40
1 6.67
2. 41-43
3 20.00
3. 44-46
6 40.00
4. 47-49
4 26.67
5. 50-52
1 6.67
Total 30
100.00
1 2
3 4
5 6
7
38-40 41-43
44-46 47-49
50-52 Reading Comprehension
Frequenc y
Figure 6. The Histogram and Polygon of the Frequency Distribution of the Post- test Scores of the Control Group Having Low Learning Motivation
A
2
B
2
.
3. High Learning Motivation Group B
1
In the high learning motivation group B
1
, the highest score is 57 and the lowest score is 34. The mean of the score is 46.7, the mode is 53.5, the median is
commit to user 85
46.83, and the standard deviation is 6.76. Table 11 is the frequency distribution of post-test scores of high learning motivation group while Figure 7 is the histogram
and the polygon of the frequency distribution.
Table 12. The Frequency Distribution of the Post-test Scores of High Learning Motivation Group B
1
.
No. Interval Class
Absolute Frequency Relative Frequency
1.
34-37 4
13.33
2.
38-41 3
10.00
3.
42-45 6
20.00
4.
46-49 5
16.67
5.
50-53 6
20.00
6.
54-57 6
20.00
Total 30
100.00
1 2
3 4
5 6
7
34-37 38-41
42-45 46-49
50-53 54-57
Reading Comprehension Frequenc
y
Figure 7. The Histogram and Polygon of the Frequency Distribution of the Post- test Scores of High Learning Motivation Group B
1
.
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4. Low Learning Motivation Group B
2
In the low learning motivation group B
2
, the highest score is 51 and the lowest score is 30. The mean of the score is 43.37, the mode is 45.5, the median is
43.90, and the standard deviation is 4.52. Table 12 is the frequency distribution of posttest scores of low learning motivation group while Figure 8 is the histogram
and the polygon of the frequency distribution.
Table 13. The Frequency Distribution of the Post-test Scores of Low Learning Motivation Group B
2
.
No. Interval Class
Absolute Frequency Relative Frequency
1.
30-33 1
3.33
2.
34-37 2
6.67
3.
38-41 6
20.00
4.
42-45 10
33.33
5.
46-49 10
33.33
6.
50-53 1
3.33
Total 30
100.00
2 4
6 8
10 12
30-33 34-37
38-41 42-45
46-49 50-53
Reading Comprehension Frequenc
y
Figure 8. The Histogram and Polygon of the Frequency Distribution of the Post- test Scores of Low Learning Motivation Group B
2
.
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B. Prerequisite Testing
