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Student No. Pre Test
Post Test Gained Score
27 44
62 18
28 64
70 6
29 58
68 10
30 62
70 8
∑ 1640
1926 286
Average Score 54.6
64.2 9.53
In the Table 4.2 above, it was shown that the highest score in pre test on Controlled Class was 70 and the lowest score was 42, furthermore, the highest
score in post test on Controlled Class was 84 and the lowest score was 46. The average score on Controlled Class was slightly increased by 9.53 points and the
total of gained score was 286. In the next page, the scanned pages of pre-test instrument can be seen.
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2. Data Analysis
a. Normality Test
The researcher using Shapiro-Wilk as the normality test testing, it is because the sample is 30 which is below 50, therefore the hypotheses are as follows:
H : Data of X is normally distributed.
H
1
: Data of X is not normally distributed. H
is accepted if the significant value of Shapiro-Wilk Test is higher than significant value α 0,05.
1 Normality of Pre-test Table 4.3
Normality of Pre-test
Tests of Normality
Kelas Kolmogorov-Smirnov
a
Shapiro-Wilk Statistic
Df Sig.
Statistic df
Sig. Pre_test
Experimental .101
20 .200
.959 20
.520 Controlled
.124 40
.124 .965
40 .252
. This is a lower bound of the true significance. a. Lilliefors Significance Correction
The table above shows that the significant value of normality test in Pre-test on Experimental class was 0.520 while in the Controlled Class was 0.252. From
these scores, it can be concluded that the significance in Experimental Class is higher than α 0.05 0.520 0.05 and the significance in Controlled Class also
higher than α 0.05 0.252 0.05. Thus, the H is accepted and it means the data
are normally distributed
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2 Normality of Post-test Table 4.4
Normality of Post-test
Tests of Normality
kelas Kolmogorov-Smirnov
a
Shapiro-Wilk Statistic
Df Sig.
Statistic df
Sig. Post_test
Experimental .159
20 .200
.958 20
.502 Controlled
.145 40
.034 .964
40 .228
. This is a lower bound of the true significance. a. Lilliefors Significance Correction
The table above shows that the significant value of normality test in Post Test on Experimental class was 0.502 while in the Controlled Class was 0.228. From
these scores, it can be concluded that the significance in Experimental Class is higher than α 0.05 0.502 0.05 and the significance in Controlled Class also
higher than α 0.05 0.228 0.05. Thus, the H
is accepted and it means the data are normally distributed.
b. Homogeneity Test
After calculating data normality, the researcher needs to calculate the homogeneity of data. Whether it is homogeny or heterogenic, it will be calculated
using Descriptive Statistic formula in SPSS 23 program for Windows as already been described in Chapter 3. Below are the hypotheses and results.
Hypothesis: H
: The sample of experimental class is not different from controlled class or the sample is homogeneous.
H
1
: The sample of experimental class is different from controlled class or the sample is heterogeneous.
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