The researcher applied referential methods in which the data were analyzed based on the explored theory. The process of the data analysis was started by
reducing the raw data by sorting out the irrelevant data. Next, the researcher classified the data into the data sheet based on the classification of the two objectives of the
study. After that, the data were analyzed according to the applied theories. To gain trustworthiness, the data were then triangulated by three students of English
Language and Literature study program. The final step of data analyzing process was drawing the conclusion based on the result of the research in order to answer the
formulation of the problem.
F. Trustworthiness of the Data
This research conducted trustworthiness to establish the reliability, truthfulness of the data, credibility, and the consistency of the data. According to Vanderstoep and
Johnston 2009: 179, the reliability of data can be gained by conducting triangulation. If the research is reliable, it can be said as a valuable research.
Furthermore, the credibility of the data was achieved by performing the data in deep and detail observation so that the data could be said credible. In applying this
credibility, the data were reread carefully and comprehensively in accordance with the researcher’s questions until she got the correct analysis.
The validity of the data was provided by crosschecking different data sources. Therefore, in this research, the data validity of the research was done by repeating
observation of the data, comparing the obtained data with the other references and doing the data triangulation with friends. For triangulation, the researcher asked three
students of English Language and Literature study program to triangulate the data. They were Nabella Primadianti, Efa Nuryani, and Wahyu Kurniasari. The
transferability and confirmability of the data were achieved by involving various theories in order to provide the detailed description and interpretation of the findings.
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CHAPTER IV RESEARCH FINDINGS AND DISCUSSION
In this chapter, the results of the research are explained in detail. This chapter consists of two sub-chapters: sub-chapter A and sub-chapter B. The first chapter
presents the findings of the research. Meanwhile, the discussion of the findings is presented in sub-chapter B.
A. Research Findings
Based on the data analysis, the study reveals 277 data of illocutionary act performed by the main characters in The Back-up Plan movie. The following sections
illustrate the research findings.
1. The Types of Illocutionary Act Performed by the Main Characters in Alan
Poul’s The Back-up Plan Movie
In terms of the types, illocutionary act can be divided into five types. They are declarative, representative, directive, expressive, and commissive. The findings of
the types of illocutionary act employed by the main characters in The Back-up Plan movie are presented in Table 2.
