9. 10
-1 -3.46
-5.60 11.97
31.36 10.
9 -4
-4.46 -8.60
19.89 73.96
11. 25
1 11.54
-3.60 133.17
12.96 12.
15 8
1.54 3.40
2.37 11.56
13. 25
7 11.54
2.40 133.17
5.76 14.
22 8.54
-4.60 72.93
21.16 15.
20 18
6.54 13.40
42.77 179.56
16. 12
4 -1.46
-0.60 2.13
0.36 17.
15 12
1.54 7.40
2.37 54.76
18. 15
-4 1.54
-8.60 2.37
73.96 19.
15 -3
1.54 -7.60
2.37 57.76
20. 17
10 3.54
5.40 12.53
29.16 21.
14 18
0.54 13.40
0.29 179.56
22. 9
-13.46 4.40
181.17 19.36
23. -3
4 -16.46
-0.60 270.93
0.36 24.
13 10
-0.46 5.40
0.21 29.16
25. 10
7 -3.46
2.40 11.97
5.76 26.
18 -8
4.54 -12.60
20.61 158.76
27. 11
4 -2.46
-0.60 6.05
0.36 28.
25 15
11.54 10.40
133.17 108.16
29. 5
-3 -8.46
-7.60 71.57
57.76 30.
14 -8
0.54 -12.60
0.29 158.76
∑ 404
138 1377.13
1290.44 Mean
13.46 4.6
45.90 43.01
According table 4.12 above, the statistical calculation can be calculated as follow:
a. Analyzing the Mean of Variable X with formulation:
M
X
=
∑
= = 13.46
b. Analyzing the Mean of Variable Y with formulation:
M
Y
=
∑
= = 4.6
c. Analyzing the Standard Deviation Score of Variable X with formulation:
√∑
= √
= √
= 6.77
d. Analyzing the Standard Deviation Score of Variable Y with formulation:
√∑
= √
= √
= 6.55
e. Analyzing the Standard Error Mean of Variable X with formulation:
SEMx =
√
=
√
=
= 1.25 f.
Determining the Standard Error Mean of Variable Y with formulation:
SEMy =
√
=
√
=
= 1.21 g.
Analyzing the Standard Error of different Mean of Variable X and Mean of Variable Y with formulation :
SEMx – SEMy = √
= √
= √
= √
= 1.73 h.
Analyzing t with formulation :
t =
= =
= 5.12
i. Analyzing the degree of freedom df with formulation:
df = n
1
+ n
2
– 2 = 30 + 30
– 2 = 60
– 2 = 58
The result of statistical calculation above shows that 5.12 is t
value
and 58 is the degree of freedom df while 1.672 is the value of t
table
in the degree of freedom at the degree of significance 5.
C. Test Hypothesis
The following is the Alternative Hypothesis H
1
and the Null Hypothesis H
which were suggested: H
: Collocation instruction
is not effective towards students’ writing skill of procedure text for grade VII at SMP Islamiyah Ciputat.
H
1
: Collocation instruction
is effective towards students’ writing skill of descriptive text for grade VII at SMP Islamiyah Ciputat
.
The following formulation of the statistics hypothesis was used to test the hypothesis:
1. If the result of calculation t t observation is bigger than t
table
t table in significant degree of 0,05, t
t
table
; Null Hypothesis H is rejected and
Alternative Hypothesis H
1
is accepted. In other words, collocation instruction is effective
towards students’ writing skill of procedure text for grade VII at SMP Islamiyah Ciputat.
2. If the result of calculation t t observation is smaller than t
table
t table in significant degree of 0,05, t
t
table
; Null Hypothesis H is accepted and
Alternative Hypothesis H
1
is rejected. In other words, collocation instruction is not effective
towards students’ writing skill of procedure text for grade VII at SMP Islamiyah Ciputat.
D. Data Interpretation
From the analysis of students ’ gain score, the gain score in experimental
group is higher than the gain score in controlled group. It was determined based on the total score and in the average score of the gain score.
The data from pre-test and post-test of both experimental class and controlled class used bythe writer to test the distribution data with Lilliefors test as its normality
test. Moreover, the writer tests the homogenous of both pre-test and post-test using Fisher-test. From those result of calculation, it can be seen that the data of pre-test
and post-test are normal and homogenous. The result of statistical calculation shows that 5.12 is the value of t
value
and 58 is the degree of freedom df. It can be seen that 1.672 is the value of t
table
in the degree of freedom and at the degree of significance 5. It means that the result of
calculation t t observation is bigger than t
table
t table in significant degree of 0,05. Therefore, Null Hypothesis H
is rejected and Alternative Hypothesis H
1
is accepted. It means that collocation instruction is effective
towards students’ writing skill of procedure text for grade VII at SMP Islamiyah Ciputat.
E. Discussion
There are a possitive effect of using collocation instruction in writing skill of procedure text. In the pre-test, the mean score of the experimental class is smaller
than controlled class. However, after given the treatment with collocation instruction, the position is changed. The post-
test’s mean score of experimental class is higher than the controlled class. It means that giving collocation instruction to the students
has the significant impact on their writing skill of procedure text. Students in the experimental class had less difficulty in combining the words
and arranging text because they obtained the instruction to combine the words and had more knowledge which words that usually come together in the context of
procedure text. The point that necessary to emphasize is the teacher has to ensure that the students have the knowledge about the words. The next stage that become a key
point is providing words combination. The combination of verb+noun crack the egg, heat the oil verb+adverb stir carefully and verb+preposition pour into, boil for
combination as the primary combination that frequently appear in this context. Therefore, teacher should be focus on those combination in arranging procedure text.
CHAPTER V CONCLUSION, IMPLICATION AND SUGGESTION
This chapter consists of the conclusion of the study which was conducted at VII Grade of SMP Islamiyah Ciputat, its implication and suggestion for the reader.
A. Conclusion
From the result of statistical calculation in chapter IV, the writer concluded that collocation instruction is effective
towards students’ writing skill of procedure text for grade VII at SMP Islamiyah Ciputat.The calculation
of the students’ score analysis in pre-test, post-test and gain score usingt-test formula shows that t
value
is 5.12 and the degree of freedom df is 58. The value of t
table
in the degree of freedom and at the degree of significance 5 is 1.672. In other word, the result of calculation
t t observation is bigger than t
table
t table in significant degree of 0,05. Therefore, Null Hypothesis H
is rejected and Alternative Hypothesis H
1
is accepted. It means collocation instruction is effective
towards students’ writing skill of procedure text for grade VII at SMP Islamiyah Ciputat.
B. Implication
The result of this study shows that collocation instruction is effective for learning procedure text. Therefore, the implication of using collocation instruction in
the classroom is that it can be have an impact on students’ ability in writing
procedure text because students have knowledge about the words and how those words combine with other word. In psychological basis, using collocation instruction
is suitable in writing skill of procedure text because it may reduce students’ confusion
in arranging text. Those implications clearly develop the real improvement on students’ writing skill of procedure text.
