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CHAPTER III RESEARCH METHODOLOGY
A. Research Design
The objective of this research is to get empirical evidence of whether or not the use of crossword puzzle in teaching vocabulary to grade VII at MTs
Muhammadiyah1Ciputat is effective. This research used quantitative method. It is called quantitative method because it is related to the calculation and analysis of
numerical data. The researcher used quasi-experimental research design to identify the effectiveness of using crossword puzzle as media in the teaching vocabulary.
Here, the researcher gave pre-test and post-test in two classes; experimental and controlled class. Pre-test was used to get the beginning score from the experimental
and controlled class before treatment. Post-test was used to measure the score after treatment. Then the result was compared after and before the treatment to get the
effectiveness of crossword puzzle as media. There was a different treatment between experimental and controlled class. In
experimental class, the researcher gave a treatment by using crossword puzzle as media for training students in learning vocabulary, whereas the students in controlled
class were taught without using crossword puzzle.
B. Place and Time of the Research
This study will be held in MTs. Muhammadiyah 1 Ciputat which is located at Jl. Dewi Sartika Gg. Nangka No. 4 Cimanggis, Tangerang Selatan. The writer will begin
her research from3 Juneto 18 June 2016 where the writer focused at 1
st
year of students MTs. Muhammadiyah 1 Ciputat.This research was held in six meetings each
class; pre-test, treatment in four times, and post-test.
C. The Population and Sampling Technique of the Research
1. Research Population
The population in this research is from all first year of students in MTs. Muhammadiyah 1 Ciputat, there are three classes: VII-1, VII-2, and VII-
3. The amount of the students of seventh grade in this school is 96
students.
2. Sampling Technique
In this study,the researcher usedPurposive Sampling. The researcher took the sample from the judgment that was representative of the population or
includes subjects with needed characteristics. In this study, the researcher took the sample by interviewing the English teacher in order to know
which classes that have the same ability in English lesson, had same facilities, on the same level and also give the pre-test for all classes to
know the class that had same score. Two classes that had choosen become controlled and experimental class. Finally, the samples of this research
were; class VII-1 as the experimental class and VII-2 as the controlled class.
D. Instrument of the Study
The instrument consists of 35 multiple choices given for experimental and controlled class. Meanwhile, the instrument made based on syllabus and took
from English text book.
E. Technique of Collecting Data
To collect the data, the researcher used a multiple choicetest as the primary instrument. There are two types of tests; pretest and posttest. The pre-test was
given in experimental and controlled class to know how far the students‟
vocabulary understanding before receiving treatment. The post-test was given to
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