C. Population and Sample
In this research, the population and sample is clear. The population of this research is the eighth grade students at MTs Pembangunan Tangerang
Selatan, academic year 20142015, which consist of eight class, from 8-A to 8- H.
The writer took two classes as research sample, they are 8-H and 8-G. 8- G is a control class and the 8-H experiment class. There are 32 students in 8-H
and 8-G, the presentation of the girls and boys is equal. The sampling technique that used in this research is purposive sampling,
because the writer chooses two classes in equal level. Both of 8-G and 8-H are bilingual classes, where both of the classes have almost same ability in English
and have same number of students.
D. Method of Research
In this research, experimental study is used; this is one of quantitative research.The designed of experiment and control class by Arikunto for
conducting the result, as followed:
Figure 3.1 Control group, pre-test, post-test design
Where:
E : Experimental Class
K : Controlled Class
1 3
: Pre-test X
: Treatment
2 4
: Post-test.
1
1
Sugiyono , Metode Penelitian Kuantitatif, Kualitatif dan RD, Bandung: Alfabeta, 2009,
p.76
E
1
X 0
2
K
3 4
The pre-test, to ensure the equivalency of the control and the experiment group before conducting the treatment and a post test to see if there is any
statistically significant difference of students’ ability in writing skill after using guided questions technique. The dependent variable in this study was students’
writing in narrative text whereas the independent variable was the use of guided questions technique.
E. Instrument and Technique of Collecting Data
In collecting the data, the writer made instrument and the instrument is written pre-test and post-test. According to Donald, instrument is an important
device for collecting data in a research. Usually, a test is used as the instrument to measure the students` achievement in education. From a certain kind of a
test, the researcher would be able to collect the data in the form of scores which could be used to identify, classify, or evaluate the test takers. He also adds that
the test in a more inclusive definition is a means of measuring the knowledge, skills, feeling, intelligence or aptitude of an individual or group.
2
1. Pre-test
Pre-test in conducted before the treatment in control class. Both classes will write narrative story entitle “Rudy and The Compass”. In
this pre-test, the writer would not explain anything about narrative. What students need to know is the story itself.
2. Post-test
Post-test is conducted after treatment. Both control and experiment class will write narrative entitle “The Empty Pot”. Moreover, just like
in pre-test, actually every story they write, they have to know the plot so they can answer the question in each treatment in experiment class
and can write the story in this post-test.
2
Donald Ari. Introduction to Research on Education, New York: Rinehart and
Winston, 2007,
p. 127
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