F. Intervention of the Research
As elaborated in chapter one, the purpose of mastering writing narrative skills was that the students were able to deliver their ideas or opinions, explore their
knowledge in many information sources in English, and comprehend a text of narrative through story mapping technique. In this technique, the definition, language
feature, schematic structure and social function of narrative text were taught. This research had six meetings in the classroom. The two meetings were used to do pre-
test and post-test and the other four meetings were used to give several treatments in teaching writing of narrative text.
In the first meeting, the definition, schematic structure, language feature, and social function of narrative text were explained to students. In addition, several
examples of narrative text were given to be analyzed by the students in order that they could distinguish narrative text from another text.
In the second meeting, explained the same material which was delivered in previous meeting to strengthen students’ understanding in narrative text. Then,
students were asked to discuss with their friends and mention the characteristics of narrative text in a fairytale.
Next meeting, students were explained about how to write a good narrative text and gave more explanation about a useful technique which could be used by students
as their outline before they wrote their story mapping. Furthermore, they were explained about the definition of story mapping, the advantages of story mapping and
how to create a story map. To make students more obvious in making story mapping, some examples of story mapping were given in different forms. After that, a new
topic was served as an assignment of students’ writing of narrative text. Students should write their story using story mapping as the outline.
In the last meeting, the steps of writing narrative text using story mapping were reviewed to make students more understand about story mapping. Then, they were
asked to write any kind of story using story mapping. They could write their story by following the element of story that they had already visualize in story mapping.
G. Technique of Data Analysis
Technique of data analysis used in the study is statistical analysis with t-test. T- test was used to test the difference between pre-test and post-test.
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Moreover, Sudjiono said that t-test was used to examine the truth of null hypothesis which stated
there is no significant difference between two variables. The formula is as followed:
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= The process of t-test was as follows:
a. Determining D difference between the score result of variable XPre-test and variable Y Post-test, with formula:
D = X-Y b. Add D and getting ∑ D Total score between X and Y
c. Determining mean from differences MD, with formula: MD =
N =Number of students experiment class d. Determining standard of deviation from difference of variable X and YSD
D
, with formula:
= [
]
e. Determining the degree of freedom df, with formula: df = N-1
f. Determining the standard of deviation from the mean of D
=
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Dr. Budi Susetyo, Statistika Untuk Analisis Penelitian, Bandung: PT. Refika Aditama, 2010, p. 208.
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Anas Sudjiono, Pengantar Statistik Pendidikan, Jakarta: PT. Raja Grafindo, 2008, p. 305.
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