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CHAPTER IV RESEARCH FINDING AND INTERPRETATION
This chapter presents description of the data, the finding of the researchand interpretation from the finding. The description of the data presents in the table,
the data analysis of the research covers the calculation of the data, test hypotheses, and the last one is the data interpretation as the finding.
A. Description of the Data
After presenting the materials to the students in both experimental and control class, the data were collected from students pre-test and post-test from
both classes. The data which is obtained is described into tables of the students achievement in the experimental class and control class.
The achievements of students in the experimental class were presented in table 4.1 and the achievements of students in the control class were presented in
table 4.4. Table 4.1 consists of four columns, the first column shows the number of
students in the experimental class, and the second column shows the pre-test scores.The third column shows the post-test scores and the last column shows the
gained scores which are resulted from the post-test score that is substracted from the pre-test score.
Table 4.1 The Student’s Scores of Experimental Class
Teaching Listening Using Language Laboratory Medium Students
Pre-test Post-test
Gained
1 33
63 30
2 30
66 36
3 36
63 27
4 50
73 23
5 59
73 14
6 66
79 13
7 56
73 17
8 53
73 20
9 46
69 23
10 53
76 23
11 36
59 23
12 69
89 20
13 79
99 20
14 36
63 27
15 46
79 33
16 23
66 43
17 59
83 24
18 30
66 36
19 46
76 30
20 43
73 30
21 59
79 20
22 50
73 23
23 36
66 30
24 46
73 27
25 33
63 30
26 50
89 39
27 36
73 37
28 33
63 30
29 46
69 23
N=29 ∑ = 1338 ∑ = 2109 ∑ = 771
Mx=46.14 Mx =72.72 Mx =26.59
The table shows that the highest score of pre-test in experimental class are 79 and the lowest score is 23. The average of gained scores between pre-test
and post-test in experimental class is 26.59. a. Pre-test statistic data of experimental class
The number of class K, Range R, and interval I as follow: Range R is the highest score H minus the lowest score L
Range R = highest score
– lowest score = 79-23
= 56 Number of class K = 1+3.3 log N
= 1+3.3 log 29 = 1+3.3 1.462
= 1+4.86 = 5.8
6 Interval I is derived from Ratio R divided number of class N
Interval I
= =
=9.3 9
Table 4.2 Frequency of pre-test
Score Frequency
23-32 3
33-42 8
43-52 9
53-62 6
63-72 2
73-82 1
b. Post-test statistic data of experimental class Range R
= 99-59 = 40
Number of class K = 1+3.3 log N = 1+3.3 log 29
= 1+3.3 1.462 = 1+4.86
= 5.8 5
Interval I
= =
=6.6 7
Table 4.3 Frequency of Post-test
Score Frequency
59-66 10
67-74 12
75-82 4
83-90 2
91-98 1
The student’s score of pre-test and post-test in experimental class from the data table above can be seen clearly in the following the chart
Chart 4.1 Student
’s Score of Experimental Class
2 4
6 8
10 12
23-32 33-42
43-52 53-62
63-72 73-82
Pre X Score
Post X
Table 4.4 The Student’s Scores of Control Class
Teaching Listening Without Language Laboratory Students
Pre-test Post-test
Gained
1 66
79 13
2 56
69 13
3 53
73 20
4 46
59 13
5 73
83 10
6 76
83 7
7 33
50 17
8 30
50 20
9 36
56 20
10 50
63 13
11 59
73 14
12 23
46 23
13 59
73 14
14 30
50 20
15 30
63 33
16 33
59 26
17 33
66 33
18 53
69 16
19 30
50 20
20 43
59 16
21 46
63 17
22 46
69 23
23 56
73 17
24 43
59 16
25 20
46 26
26 66
79 13
27 50
63 13
28 56
69 13
29 50
63 13
N=29
1345 857
512 My =
46.38 My =
64.03 My =
17.65
The table shows that the highest score of pre-test in control class is76 and the lowest score is 20. The average of gained scores between pre-test and post-test
in control class is 17.65. a. Pre-test statistic data of control class
The number of class K, Range R, and interval I as follow: Range R is the highest score H minus the lowest score L
Range R = highest score
– lowest score = 76-20
= 56 Number of class K = 1+3.3 log N
= 1+3.3 log 29 = 1+3.3 1.462
= 1+4.86 = 5.8
6 Interval I is derived from Ratio R divided number of class N
Interval I
=
= = 9.3
9
Table 4.5 Frequency of pre-test
Score Frequency
20-29 2
30-39 8
40-49 5
50-59 8
60-69 4
70-79 1
b. Post-test statistic data of control class Range R
= 83-46 = 37
Number of class K = 1+3.3 log N = 1+3.3 log 29
= 1+3.3 1.46 = 1+4.86
= 5.8 6
Interval I
= =
= 6.1 6
Table 4.6 Frequency of Post-test
Score Frequency
46-52 6
53-59 5
60-66 6
67-73 8
74-80 2
81-86 2
The student’s score of pre-test and post-test in experimental class from
the data table above can be seen clearly in the following chart.
Chart 4.2 Student’s Score of Pre-test and Post-test in Control Class
The following chart shows the combination of student’s score of pre-test
and post-class both in experimental X and control class Y. It can be seen from the chart that post-test in experimental class is higher than control class.
1 2
3 4
5 6
7 8
1 2
3 4
5 6
7 Score
Pre Y Post Y
Chart 4.3 Student’s Score of Pre-test and Post-test in Experimental and Control Class
B. Data Analysis
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