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CHAPTER III RESEARCH METHODOLOGIES
Here, several sub-chapters are going to be discussed. There will be research design, subjects of the study, population of the study, sample and sampling
technique, variables of the study, type of data, instrument of the study, method for
collecting the data, result of try out test, and the last is statistical design.
3.1 Research Design
In order to conduct this study, the writer used quasi-experimental research design in the form of nonequivalent control group design. As mentioned by Nunan
1992:41, in an experimental study, there are quasi-experimental design, pre- experimental design, and true-experimental design.
In this study involved two groups: an experimental group and a control group. The first group was given the treatment using subtitled English songs and
the last group was taught with Grammar Translation Method. A pre-test was given to both groups before the treatment and a post-test was given after the treatment.
The result of the tests in both groups was analyzed using t-test formula to see the influence of the treatment.
Nunan 1992:26 stated: Much research in education today conforms to a design in which a
single group is studied only once, subsequent to some agent or treatment presumed to cause change. Such studies might be
diagramed as follow:
XO [X = the treatment administered to the subjects, and O = the
observations.] Convinced by this argument, your next inclination is to test groups,
one which has used the innovative materials and one which has not.
Table 3.1 The Research Design
The experimental group E
1
, received a treatment X
1
of using subtitled English songs while second group, the control group C
1
received a treatment X
2
of using Grammar Translation Method. Here, the two groups received pre- test O
1
and O
2
to obtain first data. In addition, the experimental group E
1
was given treatment X
1
of using subtitled English songs while the control group C
1
was given treatment X
2
of using Grammar Translation Method. Finally, both the experiment group E
1
and the control group C
1
were given post-test O
3
and O
4
to obtain second data. The effectiveness of subtitled English songs and the relative improvement of the two groups could be seen from the gain score that
was the post-test minus the pre-test score of the two groups.
3.2 Subjects of the Study
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