CHAPTER III RESEARCH METHODOLOGY
This chapter presents the description of the research method used in this study. It consists of research design, place and time of the study, population and
sample, research instrument, techniques of collecting data, and techniques of data analysis.
A. Research Design
The design of this study is an experimental research at which there are the experimental class and controlled class. An experimental study involves a study of
the affect of the systematic manipulation of one variable on another variable. The manipulated variable is called the experimental treatment or independent variable.
It is called experimental study because it begins with an experimental hypothesis, a prediction that the treatment will have a certain effect. The
hypothesis expresses expectations as to result from the changes introduced- that the treatment and no treatment groups will differ because the treatment’s effects
1
. Based on DonalAry’s statement, the writer uses two classes as the objects
in which the first class as the experimental group as the one receiving a specific treatment and the second one as the control group receives no treatment. In the
1
Donald Ary, et.al., Introduction to Research in Education 6
th
Edition, USA: Wadsworth, 2002, p. 279-280
28
1
experimental class she used TPR method in teaching vocabulary, whereas the controlled class she used Grammar Translation Method GTM in teaching
vocabulary. For this aspect, the writer decided the nature of treatment that is 7.C class became an experimental class which was treated by the writer. Besides, 7.D
class became a controlled class. In this class, the English teacher handled teaching vocabulary by using GTM.
B. Place and Time of the Study
The research was held at MTs KhazanahKebajikanPondokCabeIlir which is located on Jl. Talas I RT 001010 PondokCabeIlirPamulangtelpFax 021 747
07253, from 20
th
of September 2010 to 23
rd
of October 2010.
C. Population and Sample
The population of this study is seventh grade students of MTs Khazanah Kebajikan Pondok Cabe Ilir, The whole students are 129 students who consist of
four classes, namely class 7.A, 7.B, 7.C and 7.D every class has 30 to 33 students. The writer took out two classes from the population as sample of this research
which consists of 60 students, which are divided into 2 classes, namely class 7.C and class 7.D. for the experiment class appointed 7.C as the sample that get the
treatment, while the other class 7.D get the controlled class in this study.
D. Research Instrument
The research instruments which used for this study includes documentation and test.
Documentations are used to gain the data about teaching preparation made by the English teacher. In this study, the writer gained it by borrowing teaching
preparation, such as, the teacher’s lesson plan, it is consist of eight lesson plan which was conducted in teaching learning process in eight meetings. The forms of
the teacher’s lesson plan can be seen in the appendixes
2
.
2
It can be seen “Appendix”, p.48
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