after the researcher gave the treatments by debate technique. The technique of giving post test was the same with the pre-test because the researcher wanted
to know how far the students could develop their arguments would use their own knowledge and their improvement after being given the pre-test.
3.4 Research Procedures
The procedure of the research as followed : 1.
Selecting speaking materials. In selecting the speaking materials the researcher used the syllabus of the second year
of Senior High School based on school based curriculum or KTSP. The topic chosen told about health.
2. Determining the instruments of the research.
The instrument in this research was speaking test and observation sheet. The writer conducted that the speaking test for the pretest and posttest, these tests aimed at
gaining the data of students’ speaking ability score before the treatment and after the treatment in performing debate. In achieving the reliability of the pretest and post test
of speaking, inter rater reliability would be used in this study. The first rater was the researcher himself and the second rater was the English class teacher. Both of them
discussed and shared ideas of speaking criteria in order to obtain the reliable result of the test. Construct validity, in this research the writer focus would use on speaking
ability in forms of debate. The topic choose would talk about general debatable like
“smoking in public place should be forbidden”. Those topics are the representative of speaking materials of School Based Curriculum or KTSP.
3. Determining Population and Sample
The population of this research was the second grade or grade XI of SMA UTAMA 2 Bandar Lampung. There are 5 five classes and one class would take as the sample.
4. Conducting Pretest
Pretest was given before the writer applied the treatment to measure increase of students’ speaking ability before being taught through debate. The test was speaking
test in the form of debate. The material was tested relate to School Based Curriculum or KTSP which are suitable for their level. Pretest would is given to find out how far
the competence of the students in speaking skill before the treatment. The test was for 80 minutes.
In selecting the speaking material the researcher would use the syllabus of the third year of Senior High School based on school base curriculum or KTSP. The topic
choose for example talk about “Mobile phone should be forbidden in the class”. 5.
Conducting Treatment After giving pretest to students, the researcher gave treatments using debate. Each
treatment took for 80 minutes. The researcher present the material for treatment in subjects through debate. In selecting the material the researcher used the syllabus of
the third year of Senior High School students based on School based Curriculum or KTSP. In this research, the research would use four treatments. The topic was chosen
was debatable topic that related to their social live for the example “Mobile phone should be forbidden in the class”
