students to work in group to discuss and complete sentences with adverb of manner. Then, the researcher asked to the students to watch English video and make a note
about pronunciation „th‟ that they got from the video during it was played. Then, the teacher and students checked the answer of the task together. In post teaching, the
students presented their answers. Then, the researcher guided and motivated the students. The last step, the researcher, as the teacher also here, and the students made
conclusion.
c. Description of the Third Treatment
In the third treatment was done on Saturday, the 19
th
of March, 2016. In pre teaching, researcher and students prayed together in the class, checked the students‟ name and
gave apperception to the students. In while teaching, the researcher gave little explaination about this kind of adverb, the second step the researcher asked the
students to work in group to discuss and complete sentences with adverb of manner. Then, the researcher asked to the students to watch English video and make a note
about pronunciation „th‟ that they got from the video during it was played. Then, the teacher and students checked the answer of the task together. In post teaching, the
students presented their answers. Then, the researcher guided and motivated the students. The last step, the researcher, as the teacher also here, and the students made
conclusion.
2. Result of the Pre-test and Post-test
Pre-test to either experimental or control class was done on Thursday, the 10
th
of March, 2016, and post-test was on Thursday, the 24
th
of March, 2016. see Appendix 16 and 27-30
a. Result of the Pre-test
At the first meeting the researcher conducted pre-test in order to find out the previous students‟ pronunciation mastery. The analysis shows that the mean of pre-test score
in control class is 69.6, the median is 70 and the mode is 60. The highest score is 87.5 and the lowest score is 50 for the pre-test. Meanwhile, the analysis shows that the
mean score of pre-test in experimental class is 63.59, the median is 62.5 and the mode is 60. The highest score is 80 and the lowest score is 45 for the pre-test. see
Appendix 16
b. Result of the Post-test
After conducting three meetings of treatments the writer conducted the post-test to the sample. The writer conducted post-
test in order to see whether the students‟ score increased or not. The analysis shows that the mean of post-test score in control class
is 72.58, the median is 72.5 and the mode is 65. The highest score is 90 and the lowest score is 60 for the pre-test. Meanwhile, the mean score of post-test in
experimental class is 77.42, the median is 77.5 and the mode is 70. The highest score is 100 and the lowest score is 57.5 for the pre-test. Appendix 16
C. Data Analysis
1. Result of Normality Test
The normality test is used to measure whether the data in both control class and experimental class are normally distributed or not. In this case, the writer used
liliefors
formula to test the normality of the data. The hypothesis for normality test formulated as follows:
H = the data have normal distribution
H
a
= the data do not have normal distribution The test criteria:
H is accepted if L
observed
is lower than L
critical
it means that the distribution of the data is normal.
H
a
is rejected if L
observed
is higher than L
critical
it means that the distribution of the data is not normal.
L
critical
was gotten by looking at table of vritical values for Lilifors test for normality Appendix 36. Because each class had the same number of sample, and the number
of sample was 31, and also this research was education or social research, the researcher used 0.05 significant level. Then, it was gotten pattern 0.886
� . Finally,
it was gotten that 0.886 31
was 0.159.
Table 4.3 Normality of the Control and Experimental Class
