�� = √
4500−
190 2 35
35−1
��
= √
4500−
36100 35
34
��
= √
4500−1031.43 34
��
= √
3468.58 34
�� = √102.02 �� = 10.1
e. Determining t , with formula:
� = −
√
2
+
2
� = 16.28 − 5.42
√
11.96
2
35
+
10.1
2
35
� = 10.86
√
143.04 35
+
102.01 35
� = 10.86
√4.08 + 2.91 � =
10.86 √6.99
� = 10.86
2.64 � = 4.11
f. Determining t-table in significant level 5 and 1 with df. df = N1+N2
– 2 = 35+35
– 2
= 68 Gained T-table = 2.38
The value of t
table
is 2.48. From the result of statistical calculation above, it can be seen that the value of t
count
is 4.11 and the degree of freedom df was 68. It was proved that t
observation
t is higher that t
table
t
t
.
The statistical hypothesis of this research can be seen as:
a. H Null Hypothesis: Crossword Puzzle Game has no significant
effectiveness in teaching vocabulary. b. H
a
Alternative Hypothesis: Crossword Puzzle Game has significant effectiveness in teaching vocabulary.
And then, the criteria used as follows: a. If t-test t
t-table t
t
in significant degree of 0.01, H null
hypothesis is rejected. b. If t-test t
t-table t
t
in significant degree of 0.01, H null
hypothesis is accepted. From the result of statistics, the calculation indicates that the value of t
count
is 4.11 and the value of the degree of significance is 2.38. It means t
count
is bigger than t
table
. It can be concluded that Ha of the writer’s hypothesis is accepted. In another words, there is significant different between teaching
vocabulary using crossword puzzle game to the second year students of SMP Puspita Bangsa Ciputat.
B. Interpretations
Data description on Research Finding shows the result of average pre-test score and average post-test score of experimental class and control class. The
average pre-test score of control class is 59.45 while the average pre-test score of experimental class is 56.42. It means the control class got higher score on pre-test
than the experimental class. Besides, the average post-test score of control class is 56.42 while the average post-test score of experimental class is 72.71. It means
the experimental class got higher average score on post-test than the control class. We can conclude after treated by crossword puzzle game towards their vocabulary
mastery, the students at the experimental class increased their score better than the
students at the control class that did not treated by crossword puzzle game towards their vocabulary mastery.
Afterward, the data analysis shows the normality of pre-test and post-test of experimental class also the normality of pre-test and post-test of control class.
By comparing the value of T
max
to T
table
we can know the result of normality data. The result of normality of pre-test at experimental class is T
max
T
table
0.0081 0.149. The result of normality of post-test at experimental class is T
max
T
table
0.0096 0.149. The result of normality of pre-test at control class is T
max
T
table
0.127 0.149. The result of normality of post-test at control class is T
max
T
table
0.128 0.149. The hypothesis of the normality data is H = T
max
≤ T
table
data is normally distributed meanwhile H
1
= T
max
T
table
data is not normally distributed. In the other hands, we can infers that both the pre-test and post-test at
experimental class and control class have normally distributed as shown by the normality test above.
Therefore, after we calculated the normality pre-test and post-test of experimental class and control class, the next step calculation was finding the
homogeneity of the data to see whether the data at both classes was homogenous or heterogeneous. The data were homogenous if H
o
: the condition of experimental class is not different from control class or the data were heterogeneous if H
1
: the condition of experimental class is different from control class. H
o
= F F
12 α n1- 1n2-1
with degree of significance which are 0,05. The calculation shows the result of F=1.73 smaller than the F
0.05
=1.84. That calculation can be concluded that H is
accepted and the data at experimental class and control class were homogeneous. Last of all, based on the result of analysis data, the value of t
table
in the degree of significance of 1 was 2.38. Then the value of t
count
was 4.11. It means that the Null Hypothesis H
was rejected and the Alternative Hypothesis Ha was accepted. Therefore, it can be inferred that the effect of crossword puzzle
game is significant on vocabulary mastery compared to without using crossword puzzle game at the second grade of SMP Puspita Bangsa.
This result proved that using crossword puzzle game can give impact significantly on students’ vocabulary mastery. Crossword puzzle game promotes
easier learning through effective material organization. This result also correspond the result seen from previous study by Fahrur
Rozi. In his study, Rozi found out that using crossword puzzle game was effective to reinforce
students’ vocabulary. These results have similarity while there is different factor such level of students. Rozi tested out crossword puzzle game on
first grade students of Madrasah Tsanawiyah Pondok Pesantren Daarul Rahman, while the writer tested it out on different level
—second grade students of SMP Puspita Bangsa Ciputat.
Based on the findings and the theories above can be drawn a conclusion that crossword puzzle game
can impact significantly in all of students’ level if it is organized as learning strategy properly and directly.
CHAPTER V CONCLUSION AND SUGGESTIONS
After finishing the whole steps of this study, the writer has drawn a conclusion considering the result of this research. Furthermore, related to the
conclusion the writer also gives some suggestions. A. Conclusion
Based on the research findings that elucidated in the previous chapter, it can be seen that the score of t
count
is bigger than t
table
where the value of t
count
is 4.11 and the value of t
table
df 68 with ɑ=0.01 is 2.38. It means Ha is accepted, so
crossword puzzle game is effective towards students’ vocabulary mastery at the
second grade of SMP Puspita Bangsa Ciputat. The implementation of crossword puzzle game showed positive responses in experimental class by the increase of
mean score and total of students who received higher score. The fact showed that the students who received higher scores after given the treatment were more than
a half of the class.
B. Suggestions
Based on the conclusion above, it can be delivered some suggestions: 1. For English teachers
a. Crossword puzzle game is one of the methods that can be considered in teaching in order to help
the students’ mastering English vocabulary.
b. English teachers should create crossword puzzle game which enriches students’ vocabulary in line with the class’ topics.
2. For students Crossword puzzle game is useful for students to help them memorize new
vocabulary in line with the class topic. 3. For further researcher
Further researcher should do research on the new way of crossword puzzle game technique in learning other language component, such as grammar,
spelling, pronunciation, etc.
