CHAPTER IV
RESEARCH FINDING AND DISCUSSION
A.
Description of the data
The research description below is
based on the scores from the test to know the correlation between students’
vocabulary mastery and reading comprehension skill. It is presented in the form
of score, variance, mean, median, mode, standard deviation, the highest and
lowest score that is completed with the variable description in the form of
histograms. The data obtained namely: The Correlation Between Students
vocabulary and Reading Comprehension Skill will be explained in details.
1.
The data of vocabulary mastery
The data of students vocabulary mastery were obtained from a test.
The data was taken from 25 students as the sample of the research. The
students’ vocabulary mastery is gotten from the score of the test and the
frequency distribution is presented in the form of table and it is included
with the histogram as follow :
a.
The table score of students’ vocabulary mastery
Number
|
Score
|
Number
|
Score
|
|
1
|
30
|
14
|
45
|
|
2
|
30
|
15
|
50
|
|
3
|
30
|
16
|
50
|
|
4
|
35
|
17
|
50
|
|
5
|
40
|
18
|
55
|
|
6
|
40
|
19
|
55
|
|
7
|
40
|
20
|
55
|
|
8
|
40
|
21
|
60
|
|
9
|
40
|
22
|
60
|
|
10
|
45
|
23
|
60
|
|
11
|
45
|
24
|
65
|
|
12
|
45
|
25
|
70
|
|
13
|
45
|
∑
|
1180
|
From
the data above, the highest score is 70, and the lowest score is 30,therefore
the range is 40. Then from the computation of the data of students’s vocabulary
mastery, it is acquired :
1)
Mean
Mean
is the average value of a data group. It is gained from summing up the
individual data of the group and dividing it by the total of the individuals: (
Djiwandono,2007:212).
Mean : 1180
25
: 47,2
2)
Median
Median
is the scores which are arranged based on the amount, which is in the middle
between the lowest and the highest scores ( Djiwandono, 2007: 212 ). Then to
find the median, the researcher has to arrange the scores of the respondents
from the lowest up to the highest as below :
30, 30, 30, 35, 40, 40, 40, 40, 40, 45, 45, 45 ,45, 45, 50, 50, 50, 55, 55, 55, 60, 60, 60, 65, 70.
30, 30, 30, 35, 40, 40, 40, 40, 40, 45, 45, 45 ,45, 45, 50, 50, 50, 55, 55, 55, 60, 60, 60, 65, 70.
The
median is : 45
3)
Mode
According
to Brown ( 1996:104 ) states that Mode is the score which occurs most
frequently. Therefore from the score above, the mode is 45.
4)
Standard deviation
Standard
deviation is the distance of an individuals value from the mean. The formula
according to James Dean Brown (1996:107) :
The
standard deviation is : 10.90489187
b.
Data table of vocabulary mastery
No
|
Classification
|
Number
|
1
|
The maximum score
|
70
|
2
|
The minimum score
|
30
|
3
|
The range score
|
40
|
4
|
The total score
|
1180
|
5
|
Mean
|
47,2
|
6
|
Median
|
45
|
7
|
Mode
|
45
|
8
|
Standard
deviation
|
10,904
|
c.
Histogram of the data vocabulary mastery
2. The data of reading comprehension.
The data of students reading comprehension obtained from the test.
The data was taken from 25 students as the sample of the research. The reading
comprehension level is gotten from the score of the test and the frequency
distribution is presented in the form of table, included with the histogram.
a.
The
table score of students’ reading comprehension.
Number
|
Score
|
Number
|
Score
|
|
1
|
23
|
14
|
63
|
|
2
|
37
|
15
|
63
|
|
3
|
47
|
16
|
67
|
|
4
|
47
|
17
|
67
|
|
5
|
47
|
18
|
67
|
|
6
|
47
|
19
|
67
|
|
7
|
53
|
20
|
70
|
|
8
|
57
|
21
|
70
|
|
9
|
60
|
22
|
73
|
|
10
|
60
|
23
|
73
|
|
11
|
60
|
24
|
73
|
|
12
|
63
|
25
|
73
|
|
13
|
63
|
∑
|
1490
|
From
the data above,the highest score of the test is 73, and the lowest score is 23,
therefore the range is 50. Then from the computation of the data of students’s
reading comprehension, it is acquired :
1)
Mean
Mean
is the average value of a data group. It is gained from summing up the
individual data of the group and dividing it by the total of the individuals: (
Djiwandono,2007:212)
Mean : 1490
25
: 59,6
After being computed,
it can be seen the mean of the data is 59,6
2)
Median
Median
is the scores which are arranged based on the amount, which is in the middle
between the lowest and the highest scores ( Djiwandono, 2007: 212 ). Then to
find the median, the researcher has to arrange the scores of the respondents
from the lowest up to the highest as below :
23,37,47,47,47,47,53,57,60,60,60,63,63,63,63,67,67,67,67,70,70,73,73,73,73. Therefore the median is : 63.
3)
Mode
According
to Brown ( 1996:104 ) states that Mode is that score which occurs most
frequently. Therefore , from the score above the mode is 63.
4)
Standard deviation
Standard
deviation is the distance of an individuals value from the mean. The formula
according to James Dean Brown (1996:107) :
The standard
deviation is : 12,555,801
b.
Data table of reading comprehension
No
|
Classification
|
Number
|
1
|
The maximum score
|
73
|
2
|
The minimum score
|
23
|
3
|
The range score
|
50
|
4
|
The total score
|
1490
|
5
|
Mean
|
59,6
|
6
|
Median
|
63
|
7
|
Mode
|
63
|
8
|
Standard
deviation
|
12,555,801
|
c.
Histogram of the data reading comprehension
DISCUSSION
A. The Discussion
of the Research
In
this discussion, the researcher will discuss about the result of the
description analysis and the correlation analysis. The description analyzes
consist of the description from the data
vocabulary mastery and reading comprehension.
The first is the description analysis of students’ vocabulary mastery. From
the description of the data students’ vocabulary mastery, it can be seen the
mean score of the test is 47,2. The criteria of the score level according
Djiwandono (2011) are as follow: the score 50-60 is in low level, score 65- 80
is medium/ enough level, and score 81-100 is in the high level. Therefore, it
can be known that students’ vocabulary mastery is low level. Then the standard
deviation from students’ vocabulary is 10.90489. It means that the
standard deviation of students’ vocabulary mastery is low level. It can be
concluded that the students are homogeneous. In other words, from a students to another in the class
have identical values.
The second is the
description analysis of reading comprehension skill. From the data, it can be
seen that the mean score of reading comprehension skill is 59,6. It
means that reading comprehension is low level according to Djiwandono (2011). Then
the standard deviation of reading comprehension skill is 12,555,801. The standard deviation is also in low
level.Then, it can be concluded that the data is homogeneous.
APPENDICES
Appendix 1
The data of students’ vocabulary
mastery
No
|
Score
|
Sort of Score
|
1
|
55
|
30
|
2
|
65
|
30
|
3
|
70
|
30
|
4
|
55
|
35
|
5
|
35
|
40
|
6
|
40
|
40
|
7
|
55
|
40
|
8
|
45
|
40
|
9
|
60
|
40
|
10
|
40
|
45
|
11
|
45
|
45
|
12
|
40
|
45
|
13
|
50
|
45
|
14
|
60
|
45
|
15
|
60
|
50
|
16
|
45
|
50
|
17
|
30
|
50
|
18
|
45
|
55
|
19
|
30
|
55
|
20
|
50
|
55
|
21
|
40
|
60
|
22
|
40
|
60
|
23
|
30
|
60
|
24
|
45
|
65
|
25
|
50
|
70
|
∑
|
1180
|
|
n
|
25
|
Appendix 2
The
highest score
|
70
|
|
The
lowest score
|
30
|
|
Range
/ r
|
40
|
|
Log
n
|
1.39794
|
|
Class
|
5.613202
|
6
|
Interval
|
6.6666667
|
7
|
Mean
|
47.2
|
|
Mode
|
45
|
|
Median
|
45
|
|
STDEV
|
10.904892
|
Appendix 3
Class
Limit
|
Class
Boundaries
|
Midpoint
|
Tally
|
Frequency
|
Percentage
|
|
29-35
|
28,5-35,5
|
32
|
IIII
|
4
|
16
|
|
36-42
|
35,5-42,5
|
39
|
5
|
20
|
||
43-49
|
42,5-49,5
|
46
|
5
|
20
|
||
50-56
|
49,5-56,5
|
53
|
6
|
24
|
||
57-63
|
56,5-63,5
|
60
|
III
|
3
|
12
|
|
64-70
|
63,5-70,5
|
67
|
II
|
2
|
8
|
|
25
|
100
|
Appendix 4
Appendix 5
No
|
Score
|
Sort of Score
|
1
|
60
|
23
|
2
|
70
|
37
|
3
|
37
|
47
|
4
|
63
|
47
|
5
|
47
|
47
|
6
|
67
|
47
|
7
|
73
|
53
|
8
|
53
|
57
|
9
|
47
|
60
|
10
|
47
|
60
|
11
|
67
|
60
|
12
|
60
|
63
|
13
|
70
|
63
|
14
|
57
|
63
|
15
|
63
|
63
|
16
|
63
|
67
|
17
|
73
|
67
|
18
|
23
|
67
|
19
|
73
|
67
|
20
|
67
|
70
|
21
|
63
|
70
|
22
|
47
|
73
|
23
|
60
|
73
|
24
|
67
|
73
|
25
|
73
|
73
|
∑
|
1490
|
|
n
|
25
|
Appendix 6
The highest score
|
73
|
||
The lowest score
|
23
|
||
Range / r
|
50
|
||
Log n
|
1.39794
|
||
Class
|
5.613202029
|
6
|
|
Interval
|
8.333333333
|
9
|
|
Mean
|
59.6
|
||
Mode
|
63
|
||
Median
|
63
|
||
STDEV
|
12,555,801
|
Appendix 7
Class
Limit
|
Class
Boundaries
|
Midpoint
|
Tally
|
Frequency
|
Percentage
|
|
22-30
|
21,5- 30,5
|
26
|
I
|
1
|
4
|
|
31-39
|
30,5- 39,5
|
35
|
I
|
1
|
4
|
|
40-48
|
39,5-48,5
|
44
|
IIII
|
4
|
16
|
|
49-57
|
48,5-57,5
|
53
|
II
|
2
|
8
|
|
58-66
|
57,5-66,5
|
62
|
7
|
28
|
||
67-75
|
66,5-75,5
|
71
|
10
|
40
|
||
25
|
100
|
Appendix 8
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