21 22
23
Table 4.2 experimental class
addition, the avera modus is 70, and t
B. The Analysis of t 1. Data Testing
Before research, a test
the data are di These tests a
normality and hom
a. Normality of
The Kolmogorov
absolute di
N Normal Pa
Most Extre Kolmogoro
Asymp. Si a. Test dis
b. Calculat
21 80
∑
22 55
Mean
23 70
4.2 presents the students score in the post lass, the highest score is 100 and the lowest
verage score or mean in the experimental class is nd the median is 70.
f the Data ng
re calculating the t
test
value to examine the hy test of normality and homogeneity are needed to
distributed normally, and whether the data are s are analyzed using IBM SPSS Statistics V
nd homogeneity tests results can be seen as below
ality of the Test Pre-test and Post-test Table 4.3
Normality of the Test
The normality
calculation above
uses ogorov-Smirnov Test. The table above shows
difference D of the pre-test or D
pre-test
. The
One-Sample Kolmogorov-Smirnov Test
NilaiPreTes 4
Parameters
a,b
Mean 40.0
Std. Deviation 13.67
treme Differences Absolute
.14 Positive
.14 Negative
-.07 orov-Smirnov Z
.97 Sig. 2-tailed
.30 istribution is Normal.
lated from data.
2900 67.44
post-test. In the st score is 45. In
ss is 67.44, then the
hypothesis of the d to know whether
are homogeneous. s Version 20. The
s below:
uses One-Sample
shows 0.148 as the Then, it can get a
t
Test NilaiPostTest
43 43
0.00 67.44
.671 13.644
.148 .109
.148 .098
.078 -.109
.970 .716
.303 .684
point that D
table
with the closest Kolmogorov-Smirnov critical points of 45 is 0.198. Therefore the comparison of the D
pre-test
D
table
is 0.148 0.198. In other hand, the absolute difference D of post-test class is
0.109, it is also less than D
table
of critical point 45 = 0.198 or D
post-test
D
table
0.120 0.224. In finding the normality, it can be referred to Z
pre-test
= 0.970 p 0.05 and Z
post-test
= 0.716 p 0.05. Therefore, it can get a conclusion that both data of the test in the experimental class
is normal.
b. Homogeneity of the Test Pre-test and Post-test Table 4.4
Homogeneity of the Pre-test
Test of Homogeneity of Variance
Levene Statistic df1
df2 Sig.
Nilai Based on Mean
.237 1
84 .628
Based on Median .139
1 84
.710 Based on Median and with
adjusted df .139
1 83.689
.710 Based on trimmed mean
.238 1
84 .627
In table 4.4, we know that the degree of significance of the mean of the post-test is 0.628 which bigger than the critical point of
0.05. Based on that finding, in can be summarized that both pre-test and post-test in the experimental class are also homogenous not
heterogeneous.
2. Hypothesis Testing
The writer uses t
test
formula to find the empirical evidence statistically and to make the testing of hypothesis in this research. In the
t
test,
the writer uses manual calculation. After getting the data; the results of students reading comprehension achievement of 8E class, X is the
students’ pre-test score in the experimental class, and Y is the students’
Kategori