E. Test of Hypothesis
The writer states the hypothesis as follows: 1 H
a
= “There is a significant difference between the students’ vocabulary scores taught by the Direct Method
and taught by the Grammar Translation Method”, 2 H
o
= “There is no significant difference between the students’ vocabulary scores taught by the Direct Method
and taught by the Grammar Translation Method” The hypothesis criterion states that: If t
o
t
t
= H
a
is accepted and H
o
is rejected, and If t
o
t
t
= H
a
is rejected and H
o
is accepted. Ha is the alternative hypothesis, Ho is the null hypothesis, t
o
is t observation, and t
t
is t test. The result of the statistic calculation indicates that the value of t
o
is 1,882 and the value of df 87 on degree of significance of 5 is 1,99. Comparing the t
o
with each values of the degree of significance, the writer finds that 1,99 1,882. So, t
o
is smaller than t
t
, or t
o
t
t
. Since t
o
score in the table is smaller than t
t
score obtained from the result of calculating, so the alternative hypothesis H
a
is rejected and the null hypothesis H
o
is accepted.
F. Data Interpretation
Based on the data collected from the test gained from the experimental class taught by using the Direct Method and the controlled class taught by using
the Grammar Translation Method showed the mean scores of test in experimental class was 81,556, while the mean scores of test in controlled class was 78,205 and
t
o
t observation is 1,822. The degree of freedom df is 87 obtained from N1 + N2 – 2 = 45 + 44 – 2. In this paper, the writer uses the degree of significance of
5 . In the table of significance, it can’t be found the df of 87 so it’s used the df of 90, and on the degree of significance of 5 , the value of the degree of
significance is 1,99. Comparing the t
o
with each values of the degree of significance, the result is 1.99 1,882.
According to the explanation about the analysis of the result on the tables above, we can interpret that teaching vocabulary through the Direct Method is not
adequate success. It can be seen on the tables of scores above that the students
who learn vocabulary through the Direct Method and the Grammar Translation Method do not have a significant differences. Although the students vocabulary
scores taught by the Direct Method higher than taught by the Grammar Translation Method, but its not a significant differences. It means that there is no
significant influence of using the direct method in teaching vocabulary.
CHAPTER V CONCLUSION AND SUGGESTION
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