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CHAPTER III RESEARCH METHODOLOGY
This chapter covers the place and time of the research, the methodology used in the research, the population and sampling, the purpose of the research, the
subject of the research, the research instrument, the technique of data collecting and the technique of data analysis.
A. Place and Time of the Research
This research was conducted at SMP Islam Annur Tanah Abang Jakarta Barat. It took about 15 months started from February 2013 until May 2014.
B. Research Method and Design
This research used quantitative and qualitative method while case study was used as a research design. According to Harold S. Madsen
J. B. Heaton, a case study had many advantages. The research applied a quantitative research
methodology to gain insight into the item analysis of English summative test at SMP Islam Annur Tanah Abang Jakarta.
C. Population and Sampling of the Research
The population of this research was the students in the first grade of SMP Islam Annur Jakarta Barat consisting 99 students. They were divided into 3
classes A, B, and C. In order to get the representative data, the writer used purposive sampling from those 3 classes, So it took 50 of the students 33
students from A class or P1, 50 33 students from B classes or P2, and 50 33 students from C classes or P3. From each class, 11 students who got the
highest score and 11 Students who got the lowest score were selected. In order to analyze the data, the writer combined those 99 students and listed
them whose answer sheets were used in this research according to their scores. Then, the writer divided them into three group; upper, middle, and lower group.
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Therefore, students number 1 to student number 15 were categorized as the upper group UG, students number 16 to number 30 were categorized as the
middle group MG, and students number 31 to student number 45 were categorized as the lower group LG. For the difficulty level analysis, the groups
of UG and LG were used to be analyzed. Then, to do the analysis of discriminating power of test, an index that shows
its ability to differentiate between pupils who have achieved well the upper group and those who have achieved poorly The lower group was used by the
writer.
D. Subject of the Research
The subject of the study was English summative test items at the first semester of 7
th
grade students of SMP Islam Annur Tanah Abang Jakarta academic year 20132014.
E. Instrument of the research
There were two instruments used in this research, they were: a.
English summative test The first instrument used in this research was the English Summative test at
odd semester from the first grade of Junior High School. The test analyzed was the English final test, and the total numbers of test items were 50 multiple choice
items. b.
Students’ answer sheets The students’ answer sheets were paper in which students gave their answers
that corresponds to the even English Summative test, 20132014 academic years.
F. Technique of Data Collecting
To collect the data based on the topic of the discussion, the writer analyzed the students’ answer sheet and the test paper of even English Summative test at
the second year students of at “SMP Islam Annur” Tanah Abang Jakarta Barat. To
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