Description of Data RESULT AND DISCUSSION

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CHAPTER IV RESULT AND DISCUSSION

A. Description of Data

There are two classes of the eighth graders of SMPN 12 Tasikmalaya used for the research: class VIII C as control class and VIII D as experimental class. The experimental class was taught using semantic mapping and control class was taught using lecturing. Each class consists of 40 students. There is a border which saparate the students. The border is their level of intelligence. The data presented here are the result of the reading test. The description includes mean, mode, median, standard deviation, and frequency distribution followed by histogram and polygon. Building on group analyzed, the distribution was divided into eight of groups: 1 the data of the students who were taught using semantic mapping A 1 ; 2 the data of the students who were taught using lecturing A 2 ; 3 the data of the students having high intelligence B 1 ; 4 the data of the students having low intelligence B 2 ; 5 the data of the students having high intelligence who were taught using semantic mapping A 1 B 1 ; 6 the data of the students having high intelligence who were taught using lecturing A 2 B 1 ; 7 the data of the students having low intelligence who were taught using semantic mapping A 1 B 2 ; 8 the data of the students having low intelligence who were taught using lecturing. commit to user 55 To describe the data, the researcher does on the highest and the lowest data, the range, the class, and interval to know the frequency distribution. The data of each group presented are described as follows: 1. The data of students who were taught using semantic mapping A 1 . Descriptive analysis of the data of A 1 shows that the score is 53 up to 84. The mean is 70, the standard deviation is 9.1, the mode is 78.13, and the median is 62.5. The frequency distribution of the data of A 1 is in table 4.1. The highest score is 84 while the lowest score is 53. From these, the range is 31. The class is 7, and the interval of these scores is 5. Histogram and polygon are presented in figure 4.1. Table 4.1 Frequency Distribution of Data A 1 Class Limit Class Bound Tally Freq f i 53-57 52.5 - 57.5 IIII 4 10 58-62 57.5 - 62.5 IIII I 6 15 63-67 62.5 - 67.5 IIII 5 12.5 68-72 67.5 - 72.5 IIII I 6 15 73-77 72.5 - 77.5 IIII III 8 20 78-82 77.5 - 82.5 IIII IIII 9 22.5 83-87 82.5 - 87.5 II 2 5 Sum 40 100 Figure 4.1. Histogram and Polygon of Data A 1 52.5 57.5 62.5 67.5 72.5 77.5 82.5 87.5 commit to user 56 2. The data of students who were taught using lecturing A2. Descriptive analysis of the data of A 2 shows that the score is 56 up to 80. The mean is 67, the standard deviation is 12.89, the mode is 65.5, and the median is 67. The frequency distribution of the data of A 2 is in table 4.2. The highest score is 80 while the lowest score is 56. From these, the range is 24. The class is 7, and the interval of these scores is 4. Histogram and polygon are presented in figure 4.2. Table 4.2 Frequency Distribution of data A 2 Class Limit Class Bound Tally Freq f i 56-59 55.5 - 59.5 IIII I 6 15 60-63 59.5 - 63.5 IIII II 7 17.5 64-67 63.5 - 67.5 IIII IIII 9 22.5 68-71 67.5 - 71.5 IIII II 7 17.5 72-75 71.5 - 75.5 IIII 4 10 76-79 75.5 - 79.5 IIII I 6 15 80 -83 79.5 - 83.5 I 1 2.5 Sum 40 100 Figure 4.2. Histogram and Polygon of Data A 2 3. The data of students having high intelligence B 1 . Descriptive analysis of the data of B 1 shows that the score is 53 up to 84. The mean is 71, the standard deviation is 8.34, the mode is 78, and the median is 55.5 59.5 63.5 67.5 71.5 75.5 79.5 83.5 commit to user 57 62.50. The frequency distribution of the data of B 1 is in table 4.3. The highest score is 84 while the lowest score is 53. From these, the range is 31. The class is 7, and the interval of these scores is 5. Histogram and polygon are presented in figure 4.3. Table 4.3. Frequency Distribution of Data B 1 Class Limit Class Bound Tally Freq f i 53-57 52.5 - 57.5 II 2 5 58-62 57.5 - 62.5 IIII I 6 15 63-67 62.5 - 67.5 IIII I 6 15 68-72 67.5 - 72.5 IIII II 7 17.5 73-77 72.5 - 77.5 IIII 8 20 78-82 77.5 - 82.5 IIII IIII 9 22.5 83-87 82.5 - 87.5 II 2 5 Sum 40 100 Figure 4.3. Histogram and Polygon of Data B 1 4. The data of students having low inteligence B 2 . Descriptive analysis of the data of B 2 shows that the score is 53 up to 80. The mean is 66, the standard deviation is 7.52, the mode is 62.50, and the median is 69.50. The frequency distribution of the data of B 2 is in table 4.4. The highest score is 80 while the lowest score is 53. From these, the range is 27. The class is 52.5 57.5 62.5 67.5 72.5 77.5 82.5 87.5 commit to user 58 7, and the interval of these scores is 4. Histogram and polygon are presented in figure 4.4. Table 4.4. Frequency Distribution of Data B 2 Class Limit Class Bound Tally Freq f i 53-56 52.5 - 56.5 IIII 5 12.5 57-60 56.5 - 60.5 IIII 5 12.5 61-64 60.5 - 64.5 IIII III 8 20 65-68 64.5 – 68.5 IIII 5 12.5 69-72 68.5 - 72.5 IIII 6 15 73-76 72.5 - 76.5 IIII III 8 20 77-80 76.5 - 80.5 III 3 7.5 Sum 40 100 Figure 4.4. Histogram and Polygon of Data B 2 5. The data of students having high intelligence who were taught using semantic mapping A 1 B 1 . Descriptive analysis of the data of A 1 B 1 shows that the score is 67 up to 84. The mean is 77, the standard deviation is 4.89, the mode is 77.30, and the median is 77. The frequency distribution of the data of A 1 B 1 is in table 4.5. The highest score is 84 while the lowest score is 67. From these, the range is 17. The class is 6, and the interval of these scores is 3. Histogram and polygon are presented in figure 4.5. 52.5 56.5 60.5 64.5 68.5 72.5 76.5 80.5 commit to user 59 Table 4.5. Frequency Distribution of Data A 1 B 1 Class Limit Class Bound Tally Freq f i 67-69 66.5 - 69.5 III 3 15 70-72 69.5 - 72.5 I 1 5 73-75 72.5 - 75.5 II 2 10 76-78 75.5 – 78.5 IIII III 8 40 79-81 78.5 - 81.5 II 2 10 82-84 81.5 - 84.5 IIII 4 20 Sum 20 100 Figure 4.5. Histogram and Polygon of Data A 1 B 1 6. The data of students having high intelligence who were taught using lecturing A 2 B 1 . Descriptive analysis of the data of A 2 B 1 shows that the score is 56 up to 76. The mean is 65, the standard deviation is 5.87, the mode is 65.50, and the median is 65.10. The frequency distribution of the data of A 2 B 1 is in table 4.6. The highest score is 76 while the lowest score is 56. From these, the range is 20. The class is 6, and the interval of these scores is 4. Histogram and polygon are presented in figure 4.6. 67.5 69.5 72.5 75.5 78.5 81.5 84.5 commit to user 60 Table 4.6. Frequency Distribution of Data A 2 B 1 Class Limit Class Bound Tally Freq f i 56-59 55.5 - 59.5 IIII 4 20 60-63 59.5 - 63.5 IIII 4 20 64-67 63.5 - 67.5 IIII 5 25 68-71 67.5 – 71.5 III 4 20 72-75 71.5 - 75.5 II 2 10 76-79 75.5 - 79.5 I 1 5 Sum 20 100 Figure 4.6. Histogram and Polygon of Data A 2 B 1 7. The data of students having low intelligence who were taught using semantic mapping A 1 B 2 . Descriptive analysis of the data of A 1 B 2 shows that the score is 53 up to 76. The mean is 64, the standard deviation is 6.61, the mode is 62.10, and the median is 62.90. The frequency distribution of the data of A 1 B 2 is in table 4.7. The highest score is 76 while the lowest score is 53. From these, the range is 23. The class is 6, and the interval of these scores is 4. Histogram and polygon are presented in figure 4.7. 55.5 59.5 63.5 67.5 71.5 75.5 79.5 commit to user 61 Table 4.7. Frequency Distribution of data A 1 B 2 Class Limit Class Bound Tally Freq f i 53-56 52.5 - 56.5 IIII 4 20 57-60 56.5 - 60.5 III 3 15 61-64 60.5 - 64.5 IIII 5 25 65-68 64.5 – 68.5 II 2 10 69-72 68.5 - 72.5 III 3 15 73-76 72.5 - 76.5 III 3 15 Sum 20 100 Figure 4.7. Histogram and Polygon of data A 1 B 2 8. The data of students having low intelligence who were taught using lecturing A 2 B 2 . Descriptive analysis of the data of A 2 B 2 shows that the score is 53 up to 80. The mean is 69, the standard deviation is 7.71, the mode is 75, and the median is 65.50. The frequency distribution of the data of A 2 B 2 is in table 4.8. The highest score is 80 while the lowest score is 53. From these, the range is 27. The class is 7, and the interval of these scores is 5. Histogram and polygon are presented in figure 4.8. 52.5 56.5 60.5 64.5 68.5 72.5 76.5 commit to user 62 Table 4.8. Frequency Distribution of Data A 2 B 2 Class Limit Class Bound Tally Freq f i 53-57 52.5 - 57.5 I 1 5 58-62 57.5 - 62.5 IIII 4 20 63-67 62.5 - 67.5 IIII 4 20 68-72 67.5 – 72.5 III 3 15 73-77 72.5 - 77.5 III 5 25 78-82 77.5 - 82.5 III 3 15 Sum 20 100 Figure 4.8. Histogram and Polygon of Data A 2 B 2

B. Two-Way ANOVA Prerequisites