CHAPTER III METHODOLOGY
A. Objective of the Study
The study aims to know the influence of optimizing collaborative learning in vocabulary teaching at the third year students of SMK YAPRI Yayasan Pendidikan
Raudlatul Ilmiyah Cilandak.
B. Place and Time of the Study
The writer did the research at SMK YAPRI Yayasan Pendidikan Raudlatul Ilmiyah Cilandak. He conducted this research at the school from the 16
th
of July 2007 to 5
th
of August 2007.
C. Research Method
This research is an experimental study in which the experimental class and the controlled class were treated by the teachers who has the same educational
background from State Islamic University in order to eliminate the bias. The writer told the teacher about the way of teaching and the lesson planning.
Before the treatment writer gave pre-test for comparing with the post-test that was given after the treatment. It was given to know how the influence of collaborative
learning and grammar translation method to vocabulary knowledge of the students. The treatment was done for eight meeting. After eight meetings the writer gave
the test as we called post-tests to both of the class. The tests had a same qualities and quantities to keep the reliability of the research.
A week he had two meeting that was divided into four-hour lessons 50 minutes each for both control class and experimental class. It was two hours each
days. The writer divided them into two kinds teaching learning. A meeting was one hour that used usual teaching learning as school’s recommendation, so it was an hour
for the research.
D. Population and Sampling
The population of this research consists of two classes, namely class 12 SK1, class 12 PJ2. The sample of this research is 46 students, which is divided into 2
classes, namely class 12 SK1 and class 12 PJ2. 12 SK1, it is called as “Kelas Sekretaris”, and 12 PJ2, it is called as “Kelas
Penjualan” . The writer found these classes have low vocabulary. So the writer used
these two classes for the research because the writer found the problem in their vocabulary knowledge. Both of the classes used to use grammar translation method
for language teaching and learning. In the research the writer used SK1 for experimental class which is
collaborative learning used and 12 PJ2 for controlled class which is grammar translation method used.
E. Instrument
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