60
H. Validity
Validity is measurement which shows the level of validity of the real of instrument, a validity instrument has high validity. Moreover, the instrument which is lack of
goodness has a low validity
60
. Further, in English teaching learning, there are two kinds of validity measurement, there are content validity and cconstruct validity
61
.
J. Data Analysis
1. Normality Test
Normality test used to know about the data that had been gotten has normal distribution, so it can be counted in Parametric statistical. In this research, the writer
used statistical computation leneve test by using SPSS Statistical Package for Social Science for normality of test. The test of normality employed are Kolmogrov
– Smirnov and Shapiro Wilk.
The hypothecal formula are : H
o
= The data have normal distribution H
a
= The data do not have normal distribution While the criteria acceptance or rejection of hypothetical test:
H
o
is accepted if Sig. α = 0.05
60
Suharsimi Arikunto, Prosedur Penelitian Suatu Pendekatan Praktek, Rineka, Jakarta, 2006, P.168.
61
Ag. Bambang Setiyadi, Op.Cit, P.21.
61 H
a
is accepted if Sig. α = 0.05
2. Homogenity Test
Homogenity test used to determine whether the data obtained from the sample homogeneous or not. The writer used statistical computation by using SPSS
Statistical Package for Social Science for homogenity test.
The hypothesis are : H
o
: the variance of the data is homogeneous H
a
: the variance of the data is not homogeneous
62
While the criteria acceptance or rejection of hypothetical test: H
o
is accepted if Sig. α = 0.05 H
a
is accepted if Sig. α = 0.05
3. Hypothetical Test
To investigate whether there is influence of using creative story game towards students’ speaking ability the writer used statistical computation by using SPSS
Statistical Package for Social Science to compute independent sample Leneve’s
Test.
62
Al Rubi’ah, The Influence of Using Mastery Learning Towards Students Speaking AbilityS1 Thesis, Bandar Lampung, IAIN Raden Intan Lampung, 2013, Unpublished, P.46.
62 The hypothesis are:
H
o
: there is significant influence of using creative story toward students’
speaking ability at the Tenth Grade of SMK Taruna Bandar Lampung in 20152016 academic year
H
a
: there is no significant influence of using creative story toward students’
speaking ability at the Tenth Grade of SMK Taruna Bandar Lampung in 20152016 academic year
While the criteria of the hypothesis test are: H
o
is received if t
observed
t
critical
H
o
is received if t
observed
t
critical 63
63
Arikunto, Op.Cit, P.311.
63
CHAPTER IV RESULT AND DISCUSSION
A.Data Description
The writer got the data in the form of score. The scores were derived from the tests. There are at least two tests in this research they were pre-test and post-test. The pre-
test was held on April 23
rd
, 2016. Before doing the post-test the writer did the treatments to experimental class, there were 3 treatments. Each of them was held on
April 30
th
and May 7
th
, 14
th
, 21
st
, 2016. The last was post test which was held on May 21
st
2016.
B. Result of the Research 1. Result of the Pre-test
At the first meeting, the teacher determined the previous students’ ability in speaking. The pre-test of control class X TKJ was administered on Saturday, 23
rd
April 2016 at 10.20am and the pre-test of experimental class X AP was administered on
Saturday, 23
rd
April 2016 at 13.00am. The analysis showed that the mean score of pre-test of control class is 3.67. The highest score is 3.95 and the lowest score is 3.35.
while the in experimental class the mean is 3.83. The highest score is 4.05 and the lowest score is 3.65.
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