Reflection The Improvement of Students’ Vocabulary Achievement
24 74 25 64
26 69 27 68
28 78 29 79
30 68 31 75
32 63 33 69
34 70 35 79
36 83 The student who passed the KKM 70
1. Calculating the students mean score of the test. It is calculated by
using this formula:
48
_ ∑x X = ──
N Based on the table above, the writer concluded the lowest score of pre-test is
52 and the highest score of pre-test is 83. The average of students’ scores of pre-test is:
48
Anas Sudijono.Pengantar Statistik Pendidikan, Jakarta: PT. Raja Grafindo Persada, 2001, p. 80
∑ Pre-test X = 2381 Mean
= ∑ X N
= 2381
36
= 66,13
From the calculation above, the mean of students’ vocabulary score in pre-test
before implementing Classroom Action Research CAR or using the scrabble game
is 66,13
2. Calculating the percentage of students’ score who passed the KKM
70 by using this formula: F
P = ── X 100 N
11 P = ── X 100
36
P = 30,55
Based on the calculation above, it shows that the students’ score percentage in
the pretest is 30,55, because there are only 11 students who passed the KKM and
25 students who still get the score below the KKM. It can be concluded that the students’ score in pre-test still low and need the improvement to achieve the KKM.
Table: 4.4 The Score of Vocabulary Post-Test I
No Score X 1
59 2
61 3
68 4
59 5
78 6
72 7
61 8
63 9
71 10
73 11
65 12
84 13
70 14
65 15
59 16
73 17
71 18
80 19
69 20
62 21
65 22
79 23
63
24 78
25 74
26 72
27 71
28 80
29 82
30 72
31 79
32 69
33 72
34 74
35 79
36 87
The student who passed the KKM 70
1. Calculating the students mean score of the test. It is calculated by
using this formula:
49
_ ∑x X = ──
N Based on the table above, the writer concluded the lowest score of post-test 1
is 59 and the highest score of pre-test is 87. The average of students’ scores of post-test 1 is:
∑ Post-test 1 Y 1 = 2545
Mean = ∑ X
49
Anas Sudijono.Pengantar Statistik Pendidikan, Jakarta: PT. Raja Grafindo Persada, 2001, p. 80
N =
2545
36
= 70,69
From the computation above , the students’ mean score of post-test in cycle 1
is 70,69. It means that there are some
students’ improvements in conducting the action by using scrabble game from the pretest mean score. It could be compared
between the pre-test mean score 66,13 and the post-test 1 mean score 70,69. So it can be concluded that there is improvement
of students’ score until 4,56 70,69 – 66,13.
2. Calculating the percentage of students’ score who passed the KKM
70 by using this formula: F
P = ── X 100 N
22 P = ── X 100
36
P = 61,11
Based on the calculation above, it shows that the students’ score percentage in
the post-test I is 61,11, because there are only 22 students who passed the KKM and 14 students who still got the score below the KKM. It can be concluded that the
students’ score in post-test 1 still low and need the improvement to achieve the KKM.
Table: 4.5 The Scores of Vocabulary Post-Test II
No Score X
1 66
2 71
3 70
4 68
5 81
6 78
7 70
8 73
9 71
10 73
11 75
12 84
13 70
14 72
15 65
16 78
17 75
18 84
19 72
20 70
21 70
22 82
23 69
24 79
25 77
26 75
27 74
28 82
29 86
30 74
31 80
32 73
33 74
34 75
35 80
36 92
The student who passed the KKM 70 1.
Calculating the students mean score of the test. It is calculated by using this formula:
_ ∑x X = ──
N
Based on the table above, the writer concluded the lowest score of post-test is 69 and the highest score is 85 which indicated that the post-test scores is higher than
the pre-test score. The average of students’ scores of post-test is:
∑ Post-test Y 2 = 2728 Mean
= ∑ Y
N = 2728
36 = 75,77
Based on the calculation above, the mean of students’ score in the post-test II
is 75,77. It showed that the mean of students’ vocabulary score in pre-test after
implementing Classroom Action Research CAR or using the scrabble game is 9,64 from the mean score of pre-test is 62,84.
The improvement of the average of students’ scores in pre-test and pot-test II is:
∑ Y 2- ∑ X = 75,77 – 66,13 = 9,64
2. Calculating the percentage of students’ score who passed the KKM
70 by using this formula
F P = ── X 100
N
32 P = ── X 100
36
P = 88,88
Based on the calculation above, it shows that the students’ score percentage in
the post-test is 88,88, because there are 32 students who passed the KKM and 4 students who still get the score below the KKM. It can be concluded that the students
’
score in post-test is higher than pre-test. And the percentage of students who achieve the KKM shows that this CAR categorized success.
From the computation above, the percentage of students’ score who passed
the KKM is 88,88. It showed that there are 32 students who passed the KKM and 4 students who still below the target of KKM. So there is 58,33 of improvement in
the students’ percentage of post-test II score from the pre-test 30,55. Therefore, this Classroom Action Research CAR has enough successful, because it has
achieved the target of CAR 75. To know the improvement of students’ vocabulary pre-test and post-test, the
writer used the standard of six by Gronlund and presented the data of the comparison between students’ score in pre-test and post-test 2 in the table below
50
:
Table: 4.6 Standard of Six by Gronlund
Mark Classification
9 Very good
8 Good
7 More than enough
6 Enough
5 Bad
4 Very bad
50
Robert L. Linn and Norman E. Gronlund, Measurement and Assessment in Teaching. New Jersey: Prentice Hall, 1995, p.349
Table: 4.7 The comparison scores of pre-test and post-test II
No X
Y Improvement
1 52
66 14
2 57
71 14
3 61
70 9
4 56
68 12
5 73
81 18
6 68
78 10
7 55
70 15
8 58
73 15
9 61
71 10
10 61 73
12 11 58
75 17
12 80 84
4 13 64
70 6
14 55 72
17 15 55
75 20
16 65 78
13 17 62
75 13
18 74 84
10 19 64
72 8
20 55 70
15 21 58
70 12
22 78 82
4 23 59
69 10
24 74 79
5 25 64
77 13
26 69 75
6 27 68
74 6
28 78 82
4 29 79
86 7
30 68 74
14 31 75
80 5
32 63 73
10 33 69
74 5
34 70 75
5 35 79
80 1
36 83 92
9
The table above shows that the average score of pre-test is 66,13. in post-test II the average score is 75,77. The improvement result of the implementation is 9,64.
S o, there is a significant improvement of students’ achievement in vocabulary. It
means that scrabble game activity is effective to be used in teaching vocabulary to tenth grade students of SMA Kartika X-1.