The design of this research was as follows:
T1 X
T2
Where: T1 : the pre test
T2 : the post test X : treatments PPP technique
Setiyadi, 2006: 131
3.2 Population and Sample of the Research
Population is all about people who become the object of the research while the
sample is people who give the data Setiyadi, 2006: 38. Based on the Setyadi’s
theory, the subject of the research was the second grade of SMA Xaverius 1 Belitang in 20122013 academic year. The second grade of SMA Xaverius 1
Belitang consisted of 5 classes, 2 classes of Science class and 3 classes of Social and each class consists of 30 to 31 students. From 5 classes available, the
researcher chooses one class which was the try out class and the other one class was the experimental class. The choosing process had done randomly. After two
classes had been chosen, the lottery applied to decide which class was the tryout class and experimental class.
3.3 Data Collecting Technique
In collecting the data needed to complete the research, the researcher used some
techniques as mentioned in the following discussion:
3.3.1 Pre test
This test was delivered to the students before the treatment by using PPP technique is conducted. The purpose of the pre test was to collect the data
about students’ ability in compound sentences. The pre test consisted of 20 items of multiple choices, 10 items of true or false, and 10 items of matching
sentences; the researcher gave 60 minutes for the students to complete the pre test.
3.3.2 Conducting the Treatments
The researcher gave three times treatments to the students in the English subject class; the treatments were about teaching compound sentences through
PPP technique. The treatment was given about three meetings with three lessons plans consisting three different discussions.
3.3.3 The post test
After having treatment in three meetings, students were given a post - test in order to get the final data. The result of the post test showed the researcher
about all the result of his research. This post test contained three aspects of compound sentences and there 10 items for each aspect of a compound
sentence.
3.3.4 Observation
In order to collect the data during the process of teaching and learning, the researcher asked some help from the subject teacher to make an observation
