CHAPTER IV RESEARCH FINDINGS
As the writer mentioned in the previous chapter, she took the data from the students by using reading tests. There were reading pre-test and reading
post-test. Those score were used to find out the effectiveness of group work in teaching reading.
A. Data Description
The writer got the data from the students’ reading test scores that were reading pre-test and reading post-test. These are the description:
Table 4.1 The Reading Test Score in class 8.6 Experiment Group
No. Pre-test X
1
Post-test X
2
Gained Score X
X
2
1 55 90 35
1225 2 40 65
25 625
3 50 90 40
1600 4 60 75
15 225
5 60 90 30
900 6 65 70
5 25
7 60 90 30
900 8 60 80
20 400
9 45 65 20
400 10 55
65 10
100 11 60
70 10
100 12 55
90 35
1225 13 50
65 15
225 26
14 50 90
40 1600
15 40 55
15 225
16 60 70
10 100
17 40 70
30 900
18 50 55
5 25
19 50 95
45 2025
20 45 65
20 400
21 40 75
35 1225
22 60 75
15 225
23 65 80
15 225
24 55 65
10 100
25 60 80
20 400
26 40 70
30 900
27 65 85
20 400
28 40 65
25 625
29 70 95
25 625
30 55 70
15 225
31 60 75
15 225
32 50 85
35 1225
33 60 70
10 100
34 35 65
30 900
35 45 70
25 625
36 40 70
30 900
37 50 80
30 900
38 45 90
45 2025
39 70 95
25 625
40 50 70
20 400
N=40 ∑X
1
=2105 ∑X2=3035
∑X=930 ∑X
2
=26100
The table above describes the students’ reading scores of experiment group in learning reading by using group work. Based on the table, the writer got
∑X
1
= 2105, ∑X
2
= 3035, ∑X = 930 and ∑
X
2
= 26100. This result is used to find out the mean gained score of each group and the t-test later.
Table 4.2 The Reading Test Score in Class 8.5 Control Group
No. Pre-test Y
1
Post-test Y
2
Gained Score Y
Y
2
1 45 65 20
400 2 55 70
15 225
3 70 70 4 45 75
30 900
5 60 55 -5
25 6 50 70
20 400
7 75 95 20
400 8 55 70
15 225
9 50 65 15
225 10 55
75 20
400 11 40
75 35
1225 12 50
80 30
900 13 40
80 40
1600 14 50
75 25
625 15 60
75 15
225 16 55
50 -5
25 17 75
75 18 45
75 30
900 19 35
60 25
625 20 80
90 10
100 21 55
70 15
225
22 50 70
20 400
23 45 80
35 1225
24 40 60
20 400
25 35 55
20 400
26 65 60
-5 25
27 45 75
30 900
28 70 75
5 25
29 35 60
25 625
30 55 65
10 100
31 30 45
15 225
32 65 55
-10 100
33 40 55
15 225
34 60 75
15 225
35 70 65
-5 25
36 55 70
15 225
37 40 75
35 1225
38 35 70
35 1225
39 70 70
40 45 70
25 625
N=40 ∑Y
1
=2095 ∑Y
2
=2765 ∑Y=670
∑Y
2
=17850
The table showed the students’ reading scores of reading pre-test and post-test from the control group. From the table, the writer got ∑Y
1
= 2095, ∑Y
2
= 2765, ∑ Y= 670, ∑Y
2
= 17850. This result is to find out the mean gained of each group and the t-test.
B. Data Analysis
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