CHAPTER IV RESEARCH FINDING
A. The Description of Data
The data of students’ achievement was collected from students’ score of pre-test and post-test which was applied in two kinds, namely the data in
experimental class and the data in controlled class. The type of score used to assess students’ speaking skill was nominal score. The data as follows:
1. The Data of Experimental Class Table 4.1
The Score of Pre-test and Post-test of Experimental Class No.
NISN Pre-test
score Post-test
score Gained
1. 4237
50 73.3
23.3 2.
4235 50
70 20
3. 4241
56.6 63.3
6.7 4.
4244 56.6
73.3 16.7
5. 4246
56.6 80
23.4 6.
4247 73.3
80 6.7
7. 4249
63.3 76.6
13.3 8.
4250 56.6
76.6 20
9. 4251
53.3 66.6
13.3 10.
4254 53.3
63.3 10
11. 4256
63.3 70
6.7 12.
4257 50
73.3 23.3
13. 4258
46.6 63.3
16.7 14.
4259 56.6
70 13.4
15. 4182
60 73.3
13.3 16.
4265 40
63.3 23.3
17. 4281
56.6 73.3
16.7
18. 4269
56.6 73.3
16.7 19.
4272 56.6
63.3 6.7
20. 4271
63.3 66.6
3.3 21.
4275 50
70 20
22. 4277
43.3 66.6
23.3 23.
4278 50
63.3 13.3
24. 4279
50 63.3
13.3 25.
4282 53.3
70 16.7
1365.8 1745.9
380.1 M = 54.632
M = 69.836
From the Table 4.1, it can be clarified that the highest score on pre-test of experimental class was 73.3 and the lowest score was 40 with the mean score of
pre-test was 54.632, while the mean score of post-test was 69.836. The total gained score in this class was 380.1. It can be known that there was significant
difference in the pre-test and post-test.
2. The Data of Controlled Class Table 4.2
The Score of Pre-test and Post-test of Controlled Class No.
NISN Pre test
score Post test
score Gained
1. 4236
50 60
10 2.
4240 46.6
66.6 20
3. 4239
46.6 53.3
6.7 4.
4242 53.3
60 6.7
5. 4243
50 63.3
13.3 6.
4245 46.6
56.6 10
7. 4248
56.6 66.6
10 8.
4252 50
60 10
9. 4253
66.6 70
3.4 10.
4255 53.3
56.6 3.3
11. 4262
56.6 56.6
12. 4263
60 63.3
3.3 13.
4264 56.6
63.3 6.7
14. 4260
60 63.3
3.3 15.
4261 66.6
70 3.4
16. 4267
43.3 53.3
10 17.
4266 53.3
56.6 3.3
18. 4268
76.6 83.3
6.7 19.
4270 46.6
56.6 10
20. 4274
56.6 60
3.4 21.
4275 53.3
60 6.7
22. 4273
50 56.6
6.6 23.
4280 53.3
60 6.7
24. 4283
53.3 63.3
10 25.
4284 76.6
80 3.4
1382.3 1559.2
176.9 M = 55.292
M = 62.368
From the Table 4.2, it shows that that the highest score on pre-test of controlled class was 76.6 and the lowest score was 43.3 with the mean score of
pre-test was 55.292, while the mean score of post-test was 62.368. The total gained score in this class was 176.9.
From the Table presented above the writer can explain the experiment class is the higher score than the controlled class.
As mentioned before, in analyzing the data from the result of pre-test and post-test, the writer used statistic calculation of the t-test formula with the degree
of significance 5.
Table 4. 3 Standard Deviation Table
Students X
Y X
Y x
2
y
2
X Y
X-Mx Y-My
1 23.3
10 8.1
2.92 65.55
8.55 2
20 20
4.8 12.92
23 167.03
3 6.7
6.7 -8.5
-0.38 72.32
0.14 4
16.7 6.7
1.5 -0.38
2.24 0.14
5 23.4
13.3 8.2
6.22 67.17
38.74 6
6.7 10
-8.5 2.92
72.32 8.55
7 13.3
10 -1.9
2.92 3.63
8.55 8
20 10
4.8 2.92
23 8.55
9 13.3
3.4 -1.9
-3.68 3.63
13.51 10
10 3.3
-5.2 -3.78
27.08 14.26
11 6.7
-8.5 -7.08
72.32 50.07
12 23.3
3.3 8.1
-3.78 65.55
14.26 13
16.7 6.7
1.5 -0.38
2.24 0.14
14 13.4
3.3 -1.8
-3.78 3.25
14.26 15
13.3 3.4
-1.9 -3.68
3.63 13.51
16 23.3
10 8.1
2.92 65.55
8.55 17
16.7 3.3
1.5 -3.78
2.24 14.26
18 16.7
6.7 1.5
-0.38 2.24
0.14 19
6.7 10
-8.5 2.92
72.32 8.55
20 3.3
3.4 -11.9
-3.68 141.71
13.51 21
20 6.7
4.8 -0.38
23 0.14
22 23.3
6.6 8.1
-0.48 65.55
0.23 23
13.3 6.7
-1.9 -0.38
3.63 0.14
24 13.3
10 -1.9
2.92 3.63
8.55 25
16.7 3.4
1.5 -3.68
2.24 13.51
380.1 176.9
0.1 -0.1
889.04 427.84
Kategori