CHAPTER III
METHOD OF INVESTIGATION
This chapter describes in detail about method of investigation which consists of source of the data, subject of the research, research method, instrument of the
research and technique of analyzing data.
3.1 Sources of the Data
Arikunto 2006:129 says that “sources of data are the subjects where the data
comes from. ”
The research was done by conducting an experiment. Two groups of the students were chosen. The first group was the experimental group. It was taught
by using animation movies as a medium. And the second group was the control group. It was taught by using traditional method. At the beginning of the
experiment, the two groups were given the same pre-test. At the end of the experiment, both groups were given a post-test.
3.2 Subject of the Research
3.2.1 Population
In a research, population was needed. According to Arikunto 2006:130 “population is the whole of the object of experiment.” Another definition is Saleh
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2001:17 who states that “population is a group of objects, events or indicator
that becomes target of the research. ” In this study, the tenth grade students of
SMA Negeri 1 Wanadadi in the academic year of 200102011 were chosen. The total number of population was 238. They were divided into 7 parallel classes.
They were X 1, X 2, X 3, X 4, X 5,X 6, and X 7. All of them were given the same English materials in teaching and learning process by their English teachers.
Moreover, in choosing the research subjects, the writer chooses the population based on the same considerations, namely the students are all in the
same grade, the students have been studying English for the same period of time, the students have been studying narrative text, and the students of the tenth grade
do not prepare themselves for the National Examination.
3.2.2 Sample and Sampling Technique
Arikunto 2006:131 states that “sample is part of population that has the same
characteristics with the population itself. ” In determining the size of the sample,
Arikunto 2006:134 also explains that “if the population is 100 respondents or less, it is better to take the whole
population as sample. If the population is more than 100 respondents, the researcher can take 10-15 or more than 25 of the population based on the
capability of the researcher.
”
Due to the fact that there was some limitation in this research, it was impossible to observe all the samples in this research because the total number of
the tenth grade students in SMA Negeri 1 Wanadadi was 238, so the experimental research was conducted in class X 5 and X 7 which have the same average score
of their English test and the same total number of the students for each class, that
was 34. The total sample of the two classes was 68, so it was 28 of the total population.
The sample technique used in this research was purposive random sampling the technical of choosing sample based on the certain criteria in order to get the
representative sample.
3.3 Instrument of the Research
