3. Test of Hypothesis
Test of hypothesis in this research conducted by using SPSS 20. The following tables contained the result of t-test calculation.
Table 4.17 The Result of T-test Calculation of Complexity
Paired Samples Statistics
Mean N
Std. Deviation Std. Error Mean
Pair 1 Precomp
6.7500 20
2.40340 .53742
postcomp 11.0000
20 5.42897
1.21395 Pair 2
Precom 5.8000
20 3.13889
.70188 Postcom
14.8500 20
7.86916 1.75960
Paired Samples Correlations
N Correlation
Sig. Pair 1
precomp postcomp 20
-.008 .973
Pair 2 precom postcom
20 -.065
.785
Paired Samples Test
Paired Differences t
df Sig. 2-tailed
Mean Std.
Deviation Std.
Error Mean
95 Confidence Interval of the
Difference Lower
Upper
precomp –
postcomp -4.25000
5.95487 1.33155 -7.03697
-1.46303 -3.192
19 .005
precom –
postcom -9.05000
8.66010 1.93646
- 13.10305
-4.99695 -4.673
19 .000
Table 4.18 The Result of T-test Calculation of Accuracy
Paired Samples Statistics
Mean N
Std. Deviation Std. Error Mean
Pair 1 preaccuracy
7.4000 20
2.43656 .54483
postaccuracy 12.0500
20 5.05210
1.12968 Pair 2
preacc 4.8000
20 2.72609
.60957 postacc
15.7500 20
6.57647 1.47054
Paired Samples Correlations
N Correlation
Sig. Pair 1
preaccuracy postaccuracy 20
.272 .246
Pair 2 preacc postacc
20 .264
.260
Paired Samples Test
Paired Differences t
df Sig. 2-tailed
Mean Std.
Deviation Std.
Error Mean
95 Confidence Interval of the
Difference Lower
Upper
preaccuracy - postaccuracy
-4.65000 4.97652
1.11278 -6.97908 -2.32092
-4.179 19
.001
preacc - postacc -
10.9500 6.41934
1.43541 -
13.95434 -7.94566
-7.628 19
.000
Based on the tables above, it is shown that the complexity mean score at post test in experimental class was 14.85. On the contrary, the complexity
mean score at post test in controlled class was 11.00. It suggests that the complexity mean score at post test in experimental class was higher than the
mean score at post test in controlled class. It is indicated that there was positive effect of using blog on students’ complexity, since students in
experimental class experienced writing with using blog while the controlled class did not. Meanwhile, based on the tables above too, it is shown that the
accuracy mean score at post test in experimental class was 15.75. On the contrary, the complexity mean score at post test in controlled class was 12.05.
It suggests that the accuracy mean score post test in experimental class was higher than the mean score at post test in controlled class. It indicateds that
there was positive effect of using blog on students’ accuracy, since students in experimental class experienced writing with using blog while the controlled
class did not. In addition, the second tables contained sig. 2 tailed values which was
0.005 for complexity and 0.001 for accuracy. The criteria mentioned that if sig. 2 tailed values α, it meant that H0 was rejected and Ha was accepted.
However, if sig. 2 tailed values α, it meant that H0 was accepted and Ha was
rejected. As result of SPSS calculation of this study, sig. 2 tailed values was 0.005 and 0.003
. It meant that sig. 2 tailed values was smaller than α which was 0.05. It indicated that H0 was rejected and Ha was accepted. In the other
word, there was significant effect of blog toward students’ accuracy and
complexity in narrative writing text.
C. Data Interpretation
By seeing the result above, it can be concluded that using blog in writing affect students’ accuracy and complexity. Students who wrote on blog had
significant different from those who did not write blog on accuracy and complexity. In other words, blog can be a useful media in increasing
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