The Description of the Data

A. The Description of the Data

The data described here are the scores of the reading test. The description includes the mean, the mode, the median, the standard deviation, and the frequency distribution followed by the histogram and the polygon. The description of the data includes the scores of reading test for each group in the

(a) each column; (b) each row; and (c) each cell.

The data of reading test in each column is differentiated into two kinds, namely (1) the data of the scores of reading test for students who are taught through group-discussion using word wall and (2) the data of the scores of reading test for students who are taught through expository teaching model.

The data of the scores of reading test in each row is divided into two parts, namely (1) the data of the scores of reading test for students with high interest, and (2) the data of the scores of reading test for students with low interest.

Meanwhile, the data of the scores of reading test in each cell includes four parts, namely (1) the data of students with high interest taught through group-discussion using word wall; (2) the data of students with low interest taught through group-discussion using word wall; (3) the data of students with high interest taught through expository teaching model; (4) the data of students with low interest taught through expository teaching model. Thus, there are eight groups of the scores of reading test. Those groups will be described in the following explanations:

1. The data of the reading test of the students or the groups who are taught through group-discussion using word wall (A 1 ).

The data of the reading test of the students or groups who are taught through group-discussion using word wall are taken using reading test. The reading test is conducted after students are given treatment through group-discussion using word wall twelve times. The highest score of the data is 36. Meanwhile, the lowest score is 22. The description of the

data shows that the mean (  ) is 29.59; the mode (Mo) is 34 and the median

(Me) is 29. Meanwhile, the standard deviation is 4.85.

The value of the statistic description is counted using Microsoft Office Excel Program that can be explored into detail information in Appendix 4. Furthermore, the frequency distribution of Data A 1 can be The value of the statistic description is counted using Microsoft Office Excel Program that can be explored into detail information in Appendix 4. Furthermore, the frequency distribution of Data A 1 can be

Table 8. The Frequency Distribution of Data A 1

Class Theoretical Frequency Cumulative Cumulative Midpoints Interval

Limits (%)

21 - 23

24 - 26

36 - 38

Frequency

Class Interval

Figure 7. Histogram and Polygon of Data A 1

2. The data of the reading test of the students or the groups who are

taught through expository teaching model (A 2 ).

The highest score of the data is 32. Meanwhile, the lowest score is

23. The description of the data shows that the mean (  ) is 27.41; the mode

(Mo) is 27 and 29 (bimodal), and the median (Me) is 27. Meanwhile, the standard deviation is 2.27.

The value of the statistic description is counted using Microsoft Office Excel Program that can be explored into detail information in Appendix 4. Furthermore, the frequency distribution of Data A 2 can be seen in the following table (Table 9). Besides, the histogram and the polygon are presented in Figure 8.

Table 9. The Frequency Distribution of Data A 2

Class Theoretical Frequency Cumulative Cumulative Midpoints Interval

Limits (%)

30 - 32

Frequency

Class Interval

Figure 8. Histogram and Polygon of Data A 2

3. The data of the reading test of the students or the group having high interest (B 1 ).

The highest score of the reading test of the students or group who have high interest is 36, and the lowest score is 23. The description of the

data shows that the mean (  ) is 30.36; the mode (Mo) is 34; the median

(Me) is 30.5, and the standard deviation is 4.27.

The value of the statistic description is counted using Microsoft Office Excel Program that can be explored into detail information in Appendix 4. Furthermore, the frequency distribution of Data B 1 can be The value of the statistic description is counted using Microsoft Office Excel Program that can be explored into detail information in Appendix 4. Furthermore, the frequency distribution of Data B 1 can be

Table 10. The Frequency Distribution of Data B 1

Class Theoretical Frequency Cumulative Cumulative Midpoints Interval

Limits (%)

21 - 23

24 - 26

36 - 38

Frequency

Class Interval

Figure 9. Histogram and Polygon of Data B 1

4. The data of the reading test of the students or the group having low interest (B 2 ).

The highest score of the reading test of the students or group who have low interest is 32, and the lowest score is 22. The description of the

data shows that the mean (  ) is 26.64; the mode (Mo) is 25; the median

(Me) is 26.5, and the standard deviation is 2.42.

The value of the statistic description is counted using Microsoft Office Excel Program that can be explored into detail information in Appendix 4. Furthermore, the frequency distribution of Data B 2 can be seen in the following table (Table 11). Besides, the histogram and the polygon are presented in Figure 10.

Table 11. The Frequency Distribution of Data B 2

Class Theoretical Frequency Cumulative Cumulative Midpoints Interval

Limits (%)

30 - 32

Frequency

Class Interval

Figure 10. Histogram and Polygon of Data B 2

5. The data of the reading test of the students or the group having high interest who are taught through group-discussion (A 1 B 1 ).

Descriptive analysis of the data of A 1 B 1 shows that the score is 30 up to 36. Thus, the highest score of Data A 1 B 1 is 36, and the lowest score

is 30. The description of the data shows that the mean (  ) is 34.18; the

mode (Mo) is 34; the median (Me) is 34, and the standard deviation is

The value of the statistic description is counted using Microsoft Office Excel Program that can be explored into detail information in Appendix 4. Furthermore, the frequency distribution of Data A 1 B 1 can be The value of the statistic description is counted using Microsoft Office Excel Program that can be explored into detail information in Appendix 4. Furthermore, the frequency distribution of Data A 1 B 1 can be

Table 12. The Frequency Distribution of Data A 1 B 1

Class Theoretical Frequency Cumulative Cumulative Midpoints Interval

Limits (%)

36 - 38

Frequency

0 29.5 32.5 35.5 38.5 Class Interval

Figure 11. Histogram and Polygon of Data A 1 B 1

6. The data of the reading test of the students or the group having low interest who are taught through group-discussion (A 1 B 2 ).

Descriptive analysis of the data of A 1 B 1 shows that the score is 22 up to 28. Thus, the highest score of Data A 1 B 2 is 28, and the lowest score

is 22. The description of the data shows that the mean (  ) is 25; the mode

(Mo) is 25; the median (Me) is 25, and the standard deviation is 1.65.

The value of the statistic description is counted using Microsoft Office Excel Program that can be explored into detail information in Appendix 4. Furthermore, the frequency distribution of Data A 1 B 2 can be seen in the following table (Table 13). Besides, the histogram and the polygon are presented in Figure 12.

Table 13. The Frequency Distribution of Data A 1 B 2

Frequency

Class Theoretical Frequency Cumulative Cumulative Midpoints Interval

Class Interval

Figure 12. Histogram and Polygon of Data A 1 B 2

7. The data of the reading test of the students or the group having high interest who are taught through expository teaching model (A 2 B 1 ).

The highest score of Data A 2 B 1 is 31. Meanwhile, the lowest score

is 23. The description of the data shows that the mean (  ) is 26.55; the

mode (Mo) is 25, 26, 27 and 29 (multimodal), the median (Me) is 26, and the standard deviation is 2.27.

The value of the statistic description is counted using Microsoft Office Excel Program that can be explored into detail information in Appendix 4. Furthermore, the frequency distribution of Data A 2 B 1 can be seen in the following table (Table 14). Besides, the histogram and the polygon are presented in Figure 13.

Table 14. The Frequency Distribution of Data A 2 B 1

Class Theoretical Frequency Cumulative Cumulative Midpoints Interval

Limits (%)

Frequency

0 20.5 23.5 26.5 29.5 32.5 Class Interval

Figure 13. Histogram and Polygon of Data A 2 B 1

8. The data of the reading test of the students or the group having low interest who are taught through expository teaching model (A 2 B 2 ).

The highest score of Data A 2 B 2 is 32. Meanwhile, the lowest score

is 25. The description of the data shows that the mean (  ) is 28.27; the

mode (Mo) is 27, 28, 29 and 30 (multimodal), the median (Me) is 28, and the standard deviation is 1.91.

The value of the statistic description is counted using Microsoft Office Excel Program that can be explored into detail information in Appendix 4. Furthermore, the frequency distribution of Data A 2 B 2 can be seen in the following table (Table 15). Besides, the histogram and the polygon are presented in Figure 14.

Table 15. The Frequency Distribution of Data A 2 B 2

Class Theoretical Frequency Cumulative Cumulative Midpoints Interval

Class Interval

Figure 14. Histogram and Polygon of Data A 2 B 2