2. The Place and time of the Research
This study was conducted at 8
th
grade of SMP Negeri 18 Tangerang, perum Poris Indah blok G, Tangerang, which was build in
1995, 2
nd
semester, and the academic year 0f 2010-2011. The research was held over period of time from may, 9
th
2011 to may, 21
st
2011. The writer holds a research by an experimental study to capability of student’s
reading comprehension by using small group discussion.
3. The Population and Sample
The population in this research is students of 8
th
grade of SMP Negeri 18, Tangerang. There are 382 students of 8
th
grade. But the writer took only 50 of them. The writer took two classes as sample for the
research. First is 8.1 class as experiment class of which its students were taught reading comprehension using small group discussion. Second is 8.4
class of which the students were taught reading comprehension without using small group discussion.
The techniques of sample taking in this research is purposive cluster sampling. The writer took 25 student from each classes, which in
8.1 class consist of 40 students and in 8.4 consist of 42 students.
4. The Techniques of Data Collecting
In techniques of data collecting, writer uses teaching and learning process by give test to the students. The writer obtained the data by
conducting teaching activity and collecting students’ test scores from both
experiment class and controlled class after they have been taught reading comprehension. The test was conducted at the third meeting. The scores
were the result of learning reading comprehension through small group discussion and without small group discussion.
Before giving the test to the students, the writer consulted to the English teacher about the questions he made, whether these questions can
be given to the students.
The writer gave the same kind of test for both the experimental class and the controlled class.
5. The Instrument of the Research
The research instruments used by the writer in collecting data are - Pre-Test
The writer did the pre-test when the teacher for the first time entered the class. It is aimed to know the students ability in material of reading
comprehension which given by the writer. - Post-test
Post-test was done in order to know the changeable on stud ent’s
reading comprehension material between learning process with explanatory method and learning process through small group
discussion.
6. The Techniques of Data Analysis
After getting data from the experiment and control class, the writer used comparative technique
38
. The comparative techniques to evaluate hypothesis concerning the differences between the two examined methods
in teaching learning process by using explanatory method and small group discussion.
The formula is as follows :
t
o
=
M1-M2
{ x1²+ ∑x2²} { N1+N2}
N1+N2-2 {N1 x N2}
The procedure of calculation as formula : a. Determining mean Variable X1 with formula:
M1 =
�1 �1
b. Determining mean Variable X2 with formula:
1
Drs.Anas Sudijono, Pengantar Statistik Pendidikan, Jakarta: PT Raja Grafindo Persada, 1994, p.317.
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