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The data of each group are described as follows:
1. The data of reading test of the students or the group who are taught by using
Collaborative Strategic Reading CSR A
1
Descriptive analysis of the data of A
1
shows that the scores are 40 up to 78. The mean is 61.33 the mode is 43.58, the median is 55.50, and the standard deviation is
13.09. Histogram and Polygon are presented in figure 2. Table 3. Frequency Distribution of A
1
Class Limits
i
f
i
X
i i
X f
40-46 7
43 301
47-53 2
50 100
54-60 5
57 285
61-67 4
64 256
68-74 7
71 497
75-81 7
78 546
32 1985
Figure 2. Histogram and Polygon Data A
1
2. The data of reading test of the students or the group who are taught by using Direct
Instruction Method A
2
Descriptive analysis of the data of A
2
shows that the score is 40 up to 73. The mean is 55.47, the mode is 59.21, the median is 56.00, and the standard deviation is
9.20. Histogram is presented in figure 3
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Table 4. Frequency Distribution of A
2
Class Limits
i
f
i
X
i i
X f
40-45 5
42.5 212.5
46-51 7
48.5 339.5
52-57 6
54.5 327
58-63 8
60.5 484
64-69 3
66.5 199.5
70-75 3
72.5 217.5
32 1780
Figure 3. Histogram and Polygon Data A
2
3. The data of reading test of the students or groups who have high self-esteem B
1
Descriptive analysis of the data of B
1
shows that the score is 40 up to 78. The mean is 61.02, the mode is 49.30, the median is 60.50, and the standard deviation is
13.04. Histogram and Polygon are presented in figure 4
Table 5. Frequency Distribution of B
1
Class Limits
i
f
i
X
i i
X f
40-46 5
43 215
47-53 7
50 350
54-60 4
57 228
61-67 2
64 128
68-74 7
71 497
75-81 7
78 546
32 1964
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Figure 4. Histogram and Polygon Data B
1
4. The data of reading test of the students or groups who have low self-esteem B
2
.
Descriptive analysis of the data of B
2
shows that the score is 40 up to 73. The mean is 55.80, the mode is 59.75, the median is 57.50, and the standard deviation is
9.20. Histogram and Polygon are presented in figure 5. Table 6. Frequency Distribution of B
2
Class Limits
i
f
i
X
i i
X f
40-45 7
42.5 297.5
46-51 3
48.5 145.5
52-57 6
54.5 327
58-63 9
60.5 544.5
64-69 4
66.5 266
70-75 3
72.5 217.5
32 1798
1 2
3 4
5 6
7 8
1
F R
E QU
E N
C Y
INTERVAL SCORE
GROUP B
1
40-46 47-53
54-60 61-67
68-74 75-81
46.5 53.5
60.5 67.5
74.5 81.5
39.5
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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
