each Component
Total Score 2244
Total Average
Score 66
According to the table, there was an improvement of the total average score of the control group, but the improvement was still lower than the
experimental group. The total score was 2244, and the total average score was 66. Meanwhile, the maximum score of the five components, including organization,
content, grammar, punctuation, and style were 20. The organization’s average was 14.353; the content’s average was 13.677; grammar’s average was 12.853;
punctuation’s average was 13; and style’s average was 12.118 See Appendix 4.
4.2.3 Normality Test
In order to know the data have normal distribution, normality test was needed. In order to test normality, the writer used SPSS 21. The normality test
was carried out for the pre test and post test in the experimental and control group. The following tables are the normality test result for both groups based on the
calculation using SPSS 21.
4.2.3.1 Pre Test Normality of the Experimental Group
Table 4.6 Pre Test Normality of the Experimental Group
Tests of Normality
Kolmogorov-Smirnov
a
Shapiro-Wilk Statistic
Df Sig.
Statistic df
Sig. VAR00001
.101 34
.200 .957
34 .200
. This is a lower bound of the true significance. a. Lilliefors Significance Correction
According to the table, the Sig value in Shapiro – Wilk is 0.200. It means that p-value is higher than level of significance, in which level of significance is
0.05. By this calculation, the pre test score for experimental group is said to be normally distributed.
4.2.3.2 Pre Test Normality of the Control Group
Table 4.7 Pre Test Normality of the Control Group
Tests of Normality
Kolmogorov-Smirnov
a
Shapiro-Wilk Statistic
Df Sig.
Statistic df
Sig. VAR00001
.086 34
.200 .969
34 .434
. This is a lower bound of the true significance. a. Lilliefors Significance Correction
According to the table, the Sig value in Shapiro – Wilk is 0.434. It means that p-value is higher than level of significance, in which level of significance is
0.05. By this calculation, the pre test score for control group is said to be normally distributed.
4.2.3.3 Post Test Normality of the Experimental Group
