Table 4.1 The Result of Validity of pre-test and Post-test
Table 4.2 The Result of Reliability of pre-test
Table 4.3 The Result of Reliability of pre-test
Based on the description table above, the amount of the subjects were 30 student from each test. So, r
table
was 0.361 for the significant value of p=0.05. The writer found that from 35 question that were tested, for pre-test, there were 26
valid questions and 9 questions were not valid. The valid number were 1, 2, 3, 6, 8, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 30, 31, 32, 34, 35.
Then, there were 25 valid questions and 10 were not valid for the post-test. The valid number were 1, 2, 3, 5, 6, 7, 11, 12, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26,
27, 28, 29, 30, 34, 35. see appendix.
So, for this try out, the Conbarch’s Alpha was 0. 902 for pre-test and 0.891
for post-test. It means that the instrument not only valid but also reliable.The writer conducted normality and homogenity before analyzing the data with t-test.
Pre-Test Post-Test
Total items tested 35
35 Total subject
30 30
Total significant items 26
25
Reliability Statistics
Cronbachs Alpha
N of Items ,902
35
Reliability Statistics
Cronbachs Alpha
N of Items ,891
35
b Normality
The normality test is performed using Kolmogriv Smirnnov and Shapiro- Walk. It used to determine if the distribution of the data from sample is normal.
The test was done for both classess. Table below show how the data analyzed and interpreted t test the normality data.
- Normality of Pre-test Table 4.4
The Result of Normality Test of the Pre-test
Tests of Normality
Class Kolmogorov-Smirnov
a
Shapiro-Wilk Statistic
df Sig.
Statistic df
Sig. Score
Experimental Class
.192 22
.074 .931
22 .128
Controlled Class .169
22 .105
.934 22
.149 a. Lilliefors Significance Correction
The table 4.3 was showed both Kolmogorov. Smirnov and Shapiro test. From Kolmogorov. Smirnov showed that sig. value of the pre-test of the
experimental class is 0.074 then sig. value of the pre-test of controlled class is 0.105
. Meanwhile, minimum aplha α value is 0,05 for each sig. value of the pre- test. Therefore, sig value of the pre-test of the experimenta
l class is bigger than α 0.074 0.05 and sig. value of the pre-test of the controlled class also bigger than
α 0.105 0.05, it means that the samples of both classes were from normal distributed population.
In addition, Based on Shapiro. Wilk test, it also showed that sig. α. From
the experimental class 0.128 0.05 and from the controlled class 0.149 0.05. In summary, the classes are normal
- Normality of Post-test Table 4.5
The Result of Normality Test of The Post-test
Tests of Normality
Class Kolmogorov-Smirnov
a
Shapiro-Wilk Statistic
df Sig.
Statistic df
Sig. Score
Experimental Class
.150 22
.200 .928
22 .109
Controlled Class .201
22 .102
.944 22
.235 a. Lilliefors Significance Correction
The table 4.4 was showed both Kolmogorov. Smirnov and Shapiro test. From Kolmogorov. Smirnovs howed that sig. value of the post-test of the
experimental class is 0.200 then sig. value of the post-test of controlled class is 0.102
. Meanwhile, minimum aplha α value is 0,05 for each sig. Value of the post-test. Therefore, sig value of te post-test of the experimental class is bigger
than α 0.200 0.05 and sig. value of the post-test of the controlled class also bigger than α 0.102 0.05, it means that the samples of both classes were from
normal distributed population. In addition, Based on Shapiro. Wilk test, it also shows that sig.
α. From the experimental class 0.109 0.05 and from the controlled class 0.235 0.05. In
summary, the classes are normal.
- Normality of Gained Score Table 4.6
The Result of Normality Test of Gained Score
Tests of Normality
Class Kolmogorov-Smirnov
a
Shapiro-Wilk Statistic
df Sig.
Statistic df
Sig. Score
Expeimental Class .173
22 .084
.932 22
.137 Controlled Class
.160 22
.148 .934
22 .146
a. Lilliefors Significance Correction
The table 4.4 was showed both Kolmogorov. Smirnov and Shapiro test. From Kolmogorov. Smirnov showed that sig. value of the gained score of the
experimental class is 0.084 then sig. value of the gained score of controlled class
