8 Giving students chance to construct their report text based on the
documentary films showed.
2.3 Concept of the Study
In this study, the writer concerns on two main terms in order to limit and focus the study to search the data easily, they are:
1 Documentary films in BBC VCD
In this study, the writer will apply the documentary films in BBC VCD as teaching media. The writer will select documentary films in BBC VCD
appropriately to be played for the students to help them get the idea of what they are to write and construct their own text in the form of written report
text. The writer assumes that teaching media in the form of documentary films will be effective aids since they are the audio visual media which
provide moving pictures and also sounds. Thus, they are able to make the students be more interested and motivated in teaching learning process. The
information provided on the films will also enlarge their vocabularies and knowledge.
2 Writing
In this study, writing is an activity in teaching and learning process in which the students are able to express their idea and build their knowledge to
construct their own text. Applying the information got from the documentary films in BBC VCD, the students are to create written report
text. The writer will also give some clues for the students to help them in writing their report texts.
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CHAPTER III METHOD OF INVESTIGATION
In this study the writer uses a method which is an experimental study, because the writer tries to investigate possible cause-and-effect relationship between two
phenomena by exposing one experimental group to one treatment condition. Experimental research describes what will happen when certain variables are
carefully controlled or manipulated. Here, the writer, having an intention to see what will happen to students’ achievement when they are taught by using
documentary films in BBC VCD, wants to use documentary films in BBC VCD in teaching writing report text as treatment. This chapter, consisting of some parts,
discusses Subject of the Study, Variables, Research Design, Procedure of Experiment, Instrument of the Study, Procedure and Methods of Data Collection,
and Technique of Data Analysis. Those parts will be described as follows:
3.1 Subject of the Study
3.1.1 Population
In doing research, the researchers deal with a large number of groups of individual they are attempted to study. Those groups they are about to discover is called
population. The definition of population might be different from one researcher’s opinion to the others’ in spite of the similar meaning. As Best 1981:7 defines
population as “a complete set of individuals or subjects having common
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