CHAPTER III RESEARCH METHODOLOGY
A. Method of the Research
For this research, the writer used experimental method in quantitative study since it requires numerical data. She conducted experiment in two different
classes with two different techniques. The writer used Know Want Learn Plus in experiment class and Jigsaw in controlled class, in teaching analytical exposition
text. In analyzing the data, the writer used t-test to analyze the students’
achievement test, by holding a pre-test to know whether or not the two different classes are relatively at the same level, and post-test to know whether or not there
is any significant different achievement of using Know Want Learn Plus and Jigsaw techniques.
B. Place and Time of the Research
The research was conducted at SMAN 8 Tangerang Selatan. It was carried out from September to November, 2014 for six meetings which consisted of
giving pre-test, presenting materials and giving post-test in the last meeting.
C. Population and sample of the research
The population of this research was the eleventh grade of SMAN 8 Tangerang Selatan. The eleventh grade of this school consisted of four classes
with 35 students in XI MIA 1, 35 students in XI MIA 2, 35 students in XI MIA 3, and 38 students in XI MIA 4. So, the total numbers of the students in eleventh
grade were 143 students. The writer took the sample only two classes taken from class XI MIA 2
35 Students and XI MIA 3 35 students. The sample was taken by using purposive sampling technique. All the class were given the pre-test and two closer
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Mean was become the sample, XI MIA 2 and XI MIA 3. In which mean score of XI MIA 2 was 53.71 and mean score of XI MIA 3 was 55.09. So, XI MIA 2 was
an experiment class using Know Want Learn Plus Strategy and XI MIA 3 was an controlled class using Jigsaw in teaching analytical exposition.
The strategy used in this quantitative research was purposive sampling. Purposive sampling permitted the researcher to assume that she can used their
knowledge of the population to judge whether or not a particular sample will be representative.
D. Technique of Data Collecting
The technique of data collecting in this research was quantitative. Design of this research is quasi-experimental research. Meanwhile, the design of this
research was experiment. The instrument was test. The test consisted of pre-test and post-test. The pre-test provided a measure on some attribute or characteristic
that assess for participant in an experiment before they received a treatment.
1
The pre-test consisted of 25 question items in two different classes, an experiment and
controlled class. Meanwhile, the post-test was a measure on some attribute or characteristic that is assessed for participants in an experiment after a treatment.
2
The post-test consisted of 25 question items was given either in experiment class or controlled class. From these data the writer analyzed and obtained the result of the
research.
E. Technique of Data Analysis
To compare the differences between students score in using Know Want Learn Plus in teaching reading of exposition texts and using Jigsaw in teaching
reading of exposition texts, the writer used t-test.
1
John W. Creswell, Educational Research: Planning, Conducting, and Evaluating Quantitative and Qualitative Research, Third Edition, New Jersey: Pearson Education, 2008, p.
301.
2
Ibid.
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