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4. DATA ANALYSIS AND RESEARCH FINDINGS
4.1. The Analysis of Data
In order to find out the result of the test, the writer applies the Standard Deviation SD rules. For this purpose, I need to tabulate the scores of each student firstly. While
tabulating the raw scores of each student, I write down the correct answer with their scores in using personal pronouns as subject and object.
TABLE 1 THE TABULATION OF THE SCORE
No. Name
A B
Total Score
X
1. M. Agil Pradana
10 10
20 67
2. Masoky Pratama
5 3
8 27
3. Kimmiko Tenno S
9 9
18 60
4. Trisna Meivan
13 13
26 87
5. Desi Wulandari
12 13
25 83
6. Ridho Tri Suci
5 6
11 37
7. Melati Febrianti
11 13
24 80
8. Uci Lestari
14 12
26 87
9. Fitriya Kinanti
11 14
25 83
10. Janna Isnaini 8
4 12
40 11. Ariska Yanna
8 9
17 57
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25 12. Rikardo Nababan
8 8
16 53
13. Khairuddin 12
14 26
87 14. Joko Suprianto
12 8
20 67
15. Yulia Viviane 10
9 19
63 16. Diah A. Wulandari
5 11
16 53
17. Ridho Septian 6
5 11
37 18. Abdurrahman F
12 13
25 83
19. Inke P. Sebayang 12
13 25
83 20. Ayu Ningtias A
8 4
12 40
21. Bella Anggriani S 15
15 30
100 22. M. Puput Ramadhan
11 9
20 67
23. Taufik Hidayat 15
15 30
100 24. Bunga Nauli Sa’aba
14 15
29 97
25. Puriadi 13
13 26
87 26. Dewi Rukmana
10 12
22 73
27. Diah Nurjanah 5
7 12
40 28. Nurul Khodijah Hrp
9 6
15 50
29. Dicky Kurniawan 11
10 21
70 30. Nico Prasetio
7 10
17 57
Total
∑
X
=2015
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26
TABLE 2 THE HIGHEST TO THE SMALLEST SCORES
No. Name
A B
Total Score
X X
2
1. Bella Anggriani S
15 15
30 100
10000 2.
Taufik Hidayat 15
15 30
100 10000
3. Bunga Nauli Sa’aba
14 15
29 97
9409 4.
Puriadi 13
13 26
87 7569
5. Trisna Meivan
13 13
26 87
7569 6.
Uci Lestari 14
12 26
87 7569
7. Khairuddin
12 14
26 87
7569 8.
Desi Wulandari 12
13 25
83 6889
9. Fitriya Kinanti
11 14
25 83
6889 10. Abdurrahman F
12 13
25 83
6889 11. Inke P. Sebayang
12 13
25 83
6889 12. Melati Febrianti
11 13
24 80
6400 13. Dewi Rukmana
10 12
22 73
5329 14. Dicky Kurniawan
11 10
21 70
4900 15. M. Agil Pradana
10 10
20 67
4489 16. Joko Suprianto
12 8
20 67
4489 17. M. Puput Ramadhan
11 9
20 67
4489 18. Yulia Viviane
10 9
19 63
3969 19. Kimmiko Tenno S
9 9
18 60
3600
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27 20. Ariska Yanna
8 9
17 57
3249 21. Nico Prasetio
7 10
17 57
3249 22. Rikardo Nababan
8 8
16 53
2809 23. Diah A. Wulandari
5 11
16 53
2809 24. Nurul Khodijah Hrp
9 6
15 50
2500 25. Janna Isnaini
8 4
12 40
1600 26. Ayu Ningtias A
8 4
12 40
1600 27. Diah Nurjanah
5 7
12 40
1600 28. Ridho Tri Suci
5 6
11 37
1369 29. Ridho Septian
6 5
11 37
1369 30. Masoky Pratama
5 3
8 27
729
Total
∑
X
=2015
∑
2
X
=147789
After I have finished making the tabulation of the raw scores that can be achieved by each student, I can go to find out the standard deviation of the test’s result.
SD = N
1 }
. {
2 2
∑ ∑
− X
X N
where, SD
means standar deviation
∑
X
means the total of correct answer N
means the number of respondents
∑
2
X
means the Quadrate of the total score
Universitas Sumatera Utara
28 So,
SD =
N 1
} .
{
2 2
∑ ∑
− X
X N
=
30 1
} 2015
147789 .
30 {
2
−
= 30
1 4060225
4433670 −
=
30 1
373445
=
30 1
611,10 = 20,37
= 20 rounded
The calculation of mean is: X
= N
X
∑
= 2015
30 =
67,17 =
67 rounded
After knowing the Mean and the Standard Deviation, then I calculated the coefficient of the reliability:
Universitas Sumatera Utara
29 KR r =
1 −
k k
− −
2
. 1
S k
M k
M
=
1 30
30 −
− −
2
20 30
67 30
67 1
=
1 30
30 −
− −
2
400 30
37 67
1
=
29 30
− −
12000 2479
1 =
1, 03 1 – 0, 21 = 1,03 x 0,79
= 0,81
The calculation above shows that the reliability of the teat is 0,81. So, the reliability of the test is high. It is based on Arikunto 1986:93, the standard of reliability
is: 0,00 – 0,40
= The reliability is low 0,41 – 0,70
= The reliability is significant 0,71 – 0,90
= The reliability is high 0,91 – 1,00
= The reliability is very high
4.2. Research Findings
Kategori