��� = � ∑�
2
�
2
e. Determining Errors Standard of Mean Variable X
���� = ��
1
��
1
− 1
f. Determining Error Standard of Mean Variable Y
���
�
= ��
2
��
2
− 1
g. Determining Error Standard of the Difference between Mean Variable X and Mean Variable Y
���
1
− �
2
= ����
1
2
+ ���
2
2
h. Determining t
o
� =
�
1
− �
2
��
�
�
−�
2
i. Determining Degree of Freedom
�� = [�
1
+ �
2
] − 2
For that purpose the writer proposed the alternative Hypothesis �
�
and Null Hypothesis
� as bellow:
�
�
= “The use of Know Want Learn Plus is more effective in teaching reading of analytical exposition text than the use of jigsaw in teaching reading of
analytical exposition text.” �
= “The use of Know Want Learn Plus is not more effective in teaching reading of analytical exposition text than the use of jigsaw in teaching reading
of analytical exposition text.”
With note that: If �
t-table, it means that �
�
is accepted and �
is rejected; but If
� t-table, it means that
�
�
is rejected and �
is accepted.
F. Procedure of the Research
In conducting the research, the writer did some procedures in order to gain the result of the research. The procedures consisted of some steps as mentioned
bellow: First, the writer began the research by doing observation in the class to see
the condition and population of SMAN 8 Tangerang Selatan in the eleventh grade. She also took some supporting data for the research. The writer observed the
teaching and learning reading skill in the class. Second, the writer made a test instrument pre and post-test. Then, she did
the test validity in the school and arranged the pre-test and post-test to be given to the sample of the research.
Third, the writer began to give pre-test to see the students’ reading score before they get the materials of reading analytical exposition by using Know Want
Learn Plus and Jigsaw technique. Forth, the writer took the sample from the population of the eleventh grade
students of SMAN 8 Tangerang Selatan. The sample was took by giving the pre- test to the groups of class, then two of them that has closer mean were took as the
sample. The samples were XI MIA2 with mean score 53.71 and XI MIA 3 with mean score 55.09. The first class was experiment class and another class was the
controlled class. Fifth, it was the treatment. In this treatment the writer conducted the
teaching learning process in class by herself. She conducted the same materials which was analytical exposition text to the two classes, but treated them in two
different techniques. The experiment class was taught by using Know Want Learn Plus, and the controlled class was taught by using Jigsaw technique.
Sixth, after the treatment that consisted of four meetings finish, the writer administered post-test to students in both two classes the experimental class and
the controlled class by using the different format from pre-test but has same level of difficulty. So, the meetings were held in six times.
Finally the data that have been collected from the pre-test and post-test were calculated using statistical calculation of t-test to figure out the result or
conclusion of the research. The writer also calculated the normality and homogeneity test by using SPSS Statistic 18 calculation.
Table 3.1
RESEARCH SCHEDULE Activities
Month September
October November
1 2
3 4
1 2
3 4
1 2
3 4
Observation
√ Test Validity
√ Experiment Class
Pre-Test
√
Treatment 1
√
Treatment 2
√
Treatment 3
√
Treatment 4
√ Post-Test
Controlled Class
Pre-Test
√
Treatment 1
√
Treatment 2
√
Treatment 3
√
Treatment 4
√ Post-Test
Data Analyzing √ √ √
CHAPTER IV RESEARCH FINDINGS
A. Data Description
1. The Data of Experiment Class Based on the statistical calculation, the mean score of pre-test is 53.71
with the maximum score was 76 and minimum score was 36 see appendix 1. It can be classified by using Sturgess formula, the interval class is 6 and the length
of interval class is 7. It showed that there are 4 students got score between 71 to 77, 4 students got score between 64 to 70, 7 students got score between 57 to 63, 6
students got score between 50 to 56, 7 students got score between 43 to 49, and 7 students got score between 36 to 42 see appendix 3.
Furthermore, the mean score of post-test is 71.89, with the maximum score is 88 and minimum score is 52 see appendix 1. The interval class is 6 and the
length of interval class is 6, too. It showed that there are 4 students got score between 85 to 91, 7 students got score between 78 to 84, 8 students got score
between 72 to 77, 6 students got score between 65 to 71, 7 students got score between 58 to 64, and 3 students got score between 52 to 57 see appendix 3.
Meanwhile, the calculation showed that the mean of gained score of pre- test and post-test in experiment class is 18.34, with the maximum score is 28 and
minimum score is 4. 2. The Data of Control Class
The result showed that the mean score of pre-test was 55.09 with the maximum score was 76 and minimum score was 20 see appendix 2. The length
of interval class of the data is 10. It can be drawn that 4 students got score between 70 to 79, 9 students got score between 60 to 69, 11 students got score
35
