that the significance was 0.429. The significance 0.429 was higher than 0.05, it meant that the pre-test was homogenous.
b. Post-test Homogeneity Test
Table 4.7
Test of Homogeneity of Variances
Posttest Levene Statistic
df1 df2
Sig. .281
1 58
.598
The writer used Levene Statistics in order to find the homogeneity of the post-test with the significance level 0.05. Then from the table above, it could be
seen that the significance was 0.598. The significance 0.598 on the table above was higher than 0.05, it meant that the pre-test was homogenous.
C. Data Analysis
After doing the preliminary analysis then move to data analysis using t-test. The t-test was done using two types of calculating: using IBM SPSS Statistics 22
and calculating manually. This analysis was done in order to know the effectiveness of blended learning model on students’ reading comprehension of
exposition text at SMAN 4 Tangerang Selatan. The results are as follows:
1. Pre-test
Tabel 4.8
Group Statistics
Class N
Mean Std. Deviation
Std. Error Mean Pretest
Eksperiment 30
59.93 13.841
2.527 Control
30 54.93
13.201 2.410
Tabel 4.9
Independent Samples Test
Levenes Test for Equality of
Variances t-test for Equality of Means
F Sig.
t Df
Sig. 2-
taile d
Mean Differe
nce Std.
Error Differe
nce 95
Confidence Interval of the
Difference
Lower Upper Pretest Equal
variances assumed
.543 .464 1.432
58 .158 5.000
3.492 -1.990 11.990 Equal
variance s not
assumed 1.432 57.870 .158
5.000 3.492 -1.991 11.991
Based on the table above, it showed the resultof the t-test for pre-test. The table 4.8 showed the mean of pre-test M
12
, standard deviasion SD
12
and standarrd error mean SE
M12
on both experimental and controlled classes. Furthermore table 4.9 showed the result of t-test. Since the pre-test was
homogenous because Levenes Test showed p=0.464, then it was greater than 0.05 p0.05. Therefore the t-test showed in equal variances assumed. The t-test of
pre-test result was 0,158 p=0.158, in other words p was greater than 0.05 p0.05. From the result it meant that the the null hypotheisis was accepted, there
were no significance differences between both experimental and controlled classes in pre-test.
2. Post-test
Tabel 4.10
Group Statistics
Class N
Mean Std. Deviation
Std. Error Mean Posttest Eksperiment
30 72.87
11.150 2.036
Control 30
68.27 10.221
1.866
Tabel 4.11
Independent Samples Test
Levenes Test for Equality of
Variances t-test for Equality of Means
F Sig.
t Df
Sig. 2-
taile d
Mean Differe
nce Std.
Error Differe
nce 95
Confidence Interval of the
Difference Lower Upper
Posttest Equal variances
assumed .281
.598 1.666
58 .101 4.600
2.762 -.928 10.128
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