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Figure 5. Histogram and Polygon Data B
2
5. The data of reading test of the students or the group having high self-esteem who are
taught by using Collaborative Strategic Reading CSR A
1
B
1
Descriptive analysis of the data of A
1
B
1
shows that the scores are 60 up 78. The mean is 71.56, the mode is 73.50, the median is 72.83, and the standard deviation is
5.03. Histogram and Polygon are presented in figure 6. Table 7. Frequency Distribution of A
1
B
1
Class Limits
i
f
i
X
i i
X f
60-63 2
61.5 123
64-67 65.6
68-71 4
69.5 278
72-75 6
73.5 441
76-79 4
77.5 310
16 1152
1 2
3 4
5 6
7 8
9 10
1
F R
E QU
E N
C Y
INTERVAL SCORE
GROUP B
2
40-45 46-51
52-57 58-63
64-69 70-75
39.5 45.5
51.5 57.5
63.5 69.5
75.5
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Figure 6. Histogram and Polygon Data A
1
B
1
6. The data of reading test of the students or the group having high self-esteem who are
taught by using Direct Instruction Method A
2
B
1
Descriptive analysis of the data of A
2
B
1
shows that the score is 40.00 up to 63.00. The mean is 50.47, the mode is 47.80, the median is 49.50, and the standard deviation
is 7.35. Histogram and Polygon are presented in figure 7 Table 8. Frequency Distribution of A
2
B
1
Class Limits
i
f
i
X
i i
X f
40-44 3
42 126
45-49 5
47 235
50-54 4
52 208
55-59 57
60-64 4
62 248
16 817
1 2
3 4
5 6
7
1
F R
E QU
E N
C Y
INTERVAL SCORE
GROUP A
1
B
1
60-63 64-67
68-71 72-75
76-79
59.5 63.5
67.5 71.5
75.5 79.5
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Figure 7. Histogram and Polygon A
2
B
1
7. The data of reading test of the students or the group having low self-esteem who are
taught by using Collaborative Strategic Reading CSR A
1
B
2
Descriptive analysis of the data of A
1
B
2
shows that the score is 40 up to 63. The mean is 51.09, the mode is 42.50, the median is 46.17, and the standard deviation is
8.92. Histogram and Polygon are presented in figure 8. Table 9. Frequency Distribution of A
1
B
2 Class Limits
i
f
i
X
i i
X f
40-44 6
42 252
45-49 2
47 94
50-54 1
52 52
55-59 2
57 114
60-64 5
62 310
16 822
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Figure 8. Histogram and Polygon Data A
1
B
2
8. The data of reading test of the students or the group having low self-esteem who are
