65
Table 3
Normality of the Experimental and Control Class
media Kolmogorov-Smirnov
a
Shapiro-Wilk Statistic
Df Sig.
Statistic df
Sig. name
1 .153
20 .200
.930 20
.157 2
.150 20
.200 .971
20 .766
a. Lilliefors Significance Correction
Based on the table, it can be seen that Pvalue Sig for experimental class is 0.157 and Pvalue Sig for control class is 0.766. Pvalue Sig in experimental class α 0.05 H
o
is accepted and H
a
is rejected and Pvalue Sig in control class α 0.05 H
o
is rejected and H
a
is accepted. Based on the data of normality tests, it can be seen that the data of experimental class have normal distribution and control class not normal distribution.
2. Result of Homogeneity Test
Homogeneity test is used to determine whether the obtained data from the sample homogeneous or not. The test of homogeneity employs Lillifors Significance
Correction:
H
o
= the variance of the data is homogenous H
a
= the variance of the data is not homogenous
66 Criteria of acceptance:
H
o
is accepted if Sig Pvalue α = 0.05 H
a
is accepted if Sig Pvalue α = 0.05
Table 4 Test of Homogeneity of Variance
Levene Statistic
df1 df2
Sig. name
Based on Mean 8.129
1 38
.07 Based on Median
5.744 1
38 .022
Based on Median and with adjusted df
5.744 1
24.168 .025
Based on trimmed mean 7.900
1 38
.008
Based on the results obtained in the test of homogeneity of variances in the column Levene Statistic, it can be seen that Pvalue Sig = 0.07 α = 0.05. It demonstrates
that H
o
is accepted because Pvalue Sig α = 0.05. it means that the variance of the data is homogeneous.
3. Result of Hypothetical Test
Based on the previos explanation describing that the normality and homogeneity test is satisfied, therefore, the writer computed the independent sample t-test by using
SPSS Statistical Program for Social Science. For hypothetical of test.
67 The hypothesis formulas are:
H
o
: µ
1
= µ
2
there is no significant influence of using Creative Story gsme towards students’ speaking ability
H
a
: µ
1
= µ
2
there is significant influence of using Creative Story gsme towards students’ speaking ability
While the criteria acceptance or rejections of hypothesis test are: H
a
is accepted if Sig. α = 0.05 H
o
is accepted if Sig. α = 0.05
Table 5
Independent Samples Test
Levenes Test for Equality of Variances
t-test for Equality of Means
F Sig.
t df
Sig. 2-
tailed Mean
Difference Std. Error
Differenc e
95 Confidence Interval of the
Difference Lower
Upper nam
e Equal
variance s
assumed 8.129
.007 27.48
38 .001 2.24750
.08179 2.08193 2.41307
Equal variance
s not assumed
27.48 26.16
9 .001
2.24750 .08179 2.07944 2.41556
68
Independent Samples Test
Levenes Test for Equality of Variances
t-test for Equality of Means
F Sig.
t df
Sig. 2-
tailed Mean
Difference Std. Error
Differenc e
95 Confidence Interval of the
Difference Lower
Upper nam
e Equal
variance s
assumed 8.129
.007 27.48
38 .001 2.24750
.08179 2.08193 2.41307
Based on the results of computation by using independent sample t-test above, it shows that the Pvalue of sifnificant generated Sig Pvalue = 0.01 α = 0.05. So, H
a
is accepted and H
o
is rejected. Based on the computation, it can be concluded that there is significant influence of using Creative Story game towords students’
speaking ability.
D. Discussion
