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indication of how accurate the test score are. To measure the reliability of the questionnaire, the researcher used Crombach Alpha. The researcher took the
questionnaire from expert, but it was important to measure the reliability one more time. It was caused by different research and the subject had different result
of reliability. The criterias of reliability using Crombach Alpha are:
0.80 up to 1.00 is very high 0.60 up to 0.79 is high
0.40 up to 0.59 is average 0.20 up to 0.39 is low
3.6 Scoring System
In scoring the result of the stu dents’ test, the researcher used Percentage Correct.
The percentage correct score was used in reporting the result of classroom achievement tests and the ideal highest score was 100. The researcher calculated
the average of the pre-test and the post-test by using the formula below:
� = 100
� �
Notes : P : Percentage of correct score
F : Number of right answers
N : Total number of items on test
Hatch and Farhady, 1982:46
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3.7 Research Procedure
In collecting the data, the researcher used the following procedure, they are as follows:
1. Determining the research problem
The first step of this research was determining the research problem. The researcher determined the kind of problems that appear in class.
2. Determining the population and selecting the sample
The population of this research was the ninth grade of MTs.N 2 Pesawaran and the samples were chosen by using purposive sampling. The researcher
take two classes, the first class is experimental class I KWL Know, Want to know, Learned technique and the second class was experimental class II
Jigsaw technique. 3.
Arranging the material that are taught The researcher arranged the material and prepared the lesson plan. Besides,
the researcher used narrative and report texts for treatment. The materials were based on KTSP 2006.
4. Administering the try-out test
The try-out was conducted in the first meeting. The try-out class was the class which was not selected for the experimental classes, but it had the same
characteristic as the samples. This test was given to the students in order to determine the quality of the test used as the instrument. Then, this test was
expected to measure the validity and the reliability of the pretest and the
