D. Population, Sample and Sampling Technique 1. Population
Population is all subject of the research.
4
A population is a set or collection of all elements processing one or more attributes of interest.
5
So, The population of this
research is the students at Tenth grade SMAN 2 Liwa
. The number of the students is 229 students from three classes available, the following table shows
the number of the population:
Table 3.2 The Number of
The Students at Tenth Grade SMAN 2 Liwa No.
Class Gender
Total Male
Female
1. XI
12 18
30 2.
X2 15
19 34
3. X3
10 22
32 4.
X4 10
25 35
5. X5
15 20
35 6.
X6 12
20 32
7. X7
11 20
31
Total 85
144 229
Source: the students at tenth grade SMAN 2 Liwa
2. Sample of the Research
Arikunto says that sample is the part of population which was investigated.
6
So, the writer took two classes out of the sample in this research. The writer chose
two classes one class as experimental class and the other class as control class.
4
Suharsimi Arikunto, Prosedure Penelitian Suatu Pendekatan Praktis, Jakarta, Rineka Cipta, 2006, p.130.
5
Ibid
6
Ibid
3. Sampling Technique
In taking sample, the writer used Cluster Random Sampling. Hadi states, in cluster random sampling, the samples are not taken from individual, but based on the
group of the individual.
7
It means that the writer used cluster random sampling because the population in groups and homogeneous and ramdom the class. Based
on the Hadi’s idea above, the writer used two classes as groups, the first is class is experimental class and the second class is a control class as follow:
a. The first, the writer provided four pieces of small paper, each paper is contained the name of 7 classes.
b. The second, the writer rolled and put into a box. c. The third, the box was shaken.
d. After that, the writer chose two pieces of the paper randomly. e. Then, the first paper was experimental class, and the second paper was as
control class.
E. Data Collecting Technique
To collect the data the writer was used writing test. The test consists of pre test, post test. The test was used to know the students ability in writing descriptive
paragraph. The teacher asks students to make a descriptive paragraph.
7
Sutrisno Hadi, Metodelogi Research. Yogyakarta, 2004, p.94.
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