Table 4.1 Distribution Frequency Score of Reading Ability on Descriptive
Text Y
Class Class
Interval Absolute
Frequency Relative
Frequency Cumulative
Frequency 1
3 –6
4 2.8
2.8 2
7 –10
13 9.03
11.83 3
11 –14
45 31.25
43.08 4
15 –18
30 20.83
63.91 5
19 –22
37 25.69
89.60 6
23 –26
12 8.3
97.90 7
27 –30
2 1.40
99.30 8
31 –34
1 0.70
100
∑
144 100
Referring to the theoretical score range 0 –40 in which 0 as
the minimum score and 40 as the maximum one, therefore, the theoretical medium score is 15.39 whereas the average score
Ỹ= 16.00 is located in the theoretical score range as showed in the
figure 4.1.
Figure 4.1 Theoretical Score Range of Students’ Reading Ability on
Descriptive Text
As displayed in Figure 4.1 that the average score of Y variable is 16.00, it is higher than the medium score which is 15.39.
It means that the score of reading ability on descriptive text is Minimum Score
Medium Score Ỹ Maximum Score
15.39 16.00 40
enough, because the average score is higher than the medium score of Y variable.
Referring to the result shows in the Figure 4.1 above, it can be concluded that the students‘ reading ability on descriptive text
which contains the understanding of the text literally and interpretatively is still low. The level of comprehension of
descriptive text can be determined from the average that is 16.00 of the maximum score 40. If it is used percentage, it got only 40.
The score shows that the students‘ reading ability on descriptive text can be categorized low.
2. Data of Students’ Reading Interest
Students‘ reading interest was measured by using questionnaire which consists of 28 statements and 5 choices. The
theoretical score range starts from 0 until 150 and the empirical score is 54 in which the lowest score is 39, the highest one is 92
and the total score is 9479. Based on the data analysis, the average
score of Students‘ reading interest is 65.83, the standard deviation SD is 11.05, the most frequency Mo is 63.32 and the medium
score Me is 65.1. The amount of class is 8 and the length of class is 7.
Table 4.2 Distribution Frequency Score of Reading Interest X1
Class Class
Interval Absolute
Frequency Relative
Frequency Cumulative
Frequency 1
39 – 45
3 2.08
2.08 2
46 – 52
12 8.33
10.41 3
53 – 59
29 20.14
30.55 4
60 – 66
35 24.31
54.86 5
67 – 73
30 20.83
75.69 6
74 – 80
21 14.58
90.27 7
81 – 87
8 5.56
95.83 8
88 – 94
6 4.17
100 ∑
144 100
Based on the theoretical score range 0 –150 that the minimum
score is 39 and the maximum one is 92, so, the theoretical medium score is 65.1, whereas the empirical average score is 65.83, the
theoretical score range can be showed in the following figure. Minimum Score Medium Score X Maximum Score
65.1 65.83 150
Figure 4.2 Theoretical Score Range of Students’ Reading Interest
3. Data of Students’ Vocabulary Mastery
The data of students‘ vocabulary mastery was taken from 40 items test in which the theoretical score range 0 until 40. Based
on the research finding, it is acquired the empirical score range 29 in which the lowest score is 5, the highest one is 34 and the total
score is 1862. The data analysis found that the average score of vocabulary mastery X2 is 12.93, the standard deviation SD is
3.77, the most frequency score Mo is 13.00, and the medium score is 13.00. The amount of class is 8 and the length of class is 4.
The dissemination of vocabulary mastery data can be seen from the frequency of distribution table as follows:
Table 4.3 Distribution Frequency Score of Vocabulary Mastery
Class Class
Interval Absolute
Frequency Relative
Frequency Cumulative
Frequency 1
5 –8
14 9.72
9.72 2
9 –12
51 35.42
45.14 3
13 –16
56 38.89
84.03 4
17 –20
20 13.89
97.92 5
21 –24
2 1.39
99.31 6
25 –28
99.31
