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46 Data are the materials which are used in some research, in which from the
materials the research object is described Sudaryanto, 1988. The data used in this research are in the form of clauses.
C. Sample and Sampling Technique
Sample is a part of population that will be investigated. While sampling technique is a technique of choosing sample Hadi, 1983, p. 70. In choosing the
sample, this research employs total sampling technique. In total sampling, all of the data provided are taken. So the samples of this research are all clauses provided in
the articles.
D. Technique of Collecting Data
The steps performed to collect the data in this research are: 1.
Collecting Reader’s Digest Magazine from 1970s to 1990s. 2.
Selecting two articles having similar topic, i.e. smoking, from those magazines, e.g. Reader’s Digest published in January 1977 and October 1997.
3. Cutting the articles into clauses.
E. Research Procedure
The research is arranged as follows: 1.
Collecting Reader’s Digest Magazine from 1970s to 1990s. 2.
Selecting two articles having similar topic, i.e. smoking, from those magazines, e.g. Reader’s Digest published in January 1977 and October 1997.
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46 3.
Cutting the articles into clauses. 4.
Analyzing the data based on SFL. 5.
Interpreting the analyzed data. 6.
Determining the register, genre and ideology of each text. 7.
Comparing the similarities and differences between the register, genre and ideology of each text.
8. Drawing conclusion.
9. Giving recommendation.
F. Technique of Analyzing Data
The data are analyzed through these following steps: 1.
Identifying the text texture through the lexicogrammar including transitivity, clause system, mood system, modality, nominal group, verbal group, adverbial
group and theme-rheme system. 2.
Identifying the text structure. 3.
Identifying the register of each text covering field, tenor and mode by making use of lexicogrammar analyses previously done.
4 Identifying the genre of each text.
5 Analyzing the ideology of each text reflected in the register and genre.
6. Comparing the register, genre and ideology of each text.
7 Drawing the conclusion.
