Table 4.1 Normality of the Experimental and Control Class
Class Pre-test
Post-test Conclusion
L
observed
L
critical
L
observed
L
critical
Control 0.130
0.157 0.143
0.157 Normal
Experimental 0.116
0.159 0.117
0.159 Normal
Based on Table 4.1, it could be seen that in experimental and control class showed that L
observed
L
critical.
L
critical
of control class is 0.157. Whereas, L
observed
in pretest of control class is 0.130 and in posttest is 0.143. That is lower than 0.157. L
critical
of experimental class is 0.159. Whereas, L
observed
in pretest of experimental class is 0.116 and in posttest is 0.117. That is lower than 0.159. The researcher concluded
that the data in both classes were normality distributed. See Appendix 15-18.
4. Result of Homogeneity Test
Homogeneity test was used to determine whether the data obtained from the sample homogeneous or not.
The hypothesis for the homogeneity tests are:
H
o
= the variance of the data is homogenous H
a
= the variance of the data is not homogenous The criteria of acceptance or rejections of homogeneity test are as follows:
H
o
is accepted if
� �
� � �
, with � = 0.05
H
a
is rejected if
� �
� � �
, with � = 0.05
Table 4.2 Homogeneity Test
Homogeneity Test of Pre-test Homogeneity Test of Post-test
Control Experimental
Control Experimental
S
2
57.6360 76.6129
88.080 127.957
F
observed
1.329 1.453
From the table above, the homogeneity pre-test of control and experimental class is 1.3292 and homogeneity post-test of control and experimental class is 1.453 it
is found that F
critical
of 0.05 30.30 was 1.84. The data come from homogenous data provided F
observed
F
critical
. It means that the variance of the data was homogeneous. See Appendix 19-20
5. Result of Hypothetical Test
Based on the previous explanation, normality and homogeneity test were satisfied. Therefore, the researcher tested the hypothetical test using independent
t-test The hypotheses were:
H
a
: There is a significant influence of using Inductive towards students’ simple
present tense mastery at the second semester of the eighth grade at SMPN 9 Bandar Lampung in the academic year of 20152016.
H
o
: There is no significant influence of using Induc tive towards students’ simple
present tense mastery at the second semester of the eighth grade at SMPN 9 Bandar Lampung in the academic year of 20152016.
The criteria of acceptance or rejection of hypothesis for Hypothetical test were: H
o
is accepted if
� �
� � �
H
a
is accepted if
� �
� � �
, with � = 0.05 5.
The result of the T-test is 3.346. Then it was consulted to t
critical
with the score of degree of freedom number of sample from both control class and experimental
class subtracted by 2 is 61. The result of t
critical
of 0.05 is 2.00. From this, it can be seen that the result of T-test is significant in the range of 0.05. In this case, H
a
is accepted.Then, it can be assumed that there is significant influence of using
inductive approach towards students’ Simple Present Tense mastery at the second
semester of the eighth grade at SMPN 9 Bandar Lampung in the academic year of 20152016. See Appendix 22
C. Discussion
