CHAPTER III RESEARCH METHODOLOGY AND FINDINGS
A. Research Methodology
1. The Purpose of Study
In this research, the writer wants to know the effectiveness of lesson plan in teaching vocabulary to the second year of Junior High School, especially at State
Islamic Juinior High School MTsN Tangerang II Pamulang.
2. Place and Time of Study
To carry out this study, the writer chooses Islamic Juinior High School MTsN Tangerang II Pamulang as the location of the research. Islamic Juinior High
School MTsN Tangerang II Pamulang is located on Jl. Padjajaran No.31 Pamulang- Tangerang
The research was done from 19
th
up to 29
th
July 2006, including permission, survey, and doing research.
3. Population and Sample Taking
To carry out this study, the writer chooses Madrasah Tsanawiyah Negeri Tangerang II Pamulang as the location of the research with the amount of 50 students
from two classes. The research was done at two classes, 2.1 amount of 25 students
and 2.2 amount of 25 students. The test was given to the experiment class and control class.
4. Method of Study
In this skripsi the writer uses field research. In this research the writer did experiment and evaluation, took interviews with the English teacher and given the
test to second year students of MTsN Tangerang II Pamulang as well. In field research the writer collected data by teaching and observed two,
classes, experiment class by using lesson plan for teaching vocabulary and control class without using lesson plan.
5. Technique of Data Collecting
One important thing in this research: is collecting data that can determine the result of research. The techniques of collecting data used in this research are:
a. Interview
The writer considered that she needs to interview the English teacher to know how far the prepared lesson planning for teaching in the class.
b. Observation
The observation was done by attending the class on 19
th
July 2006 in two classes. Here the writer observed the atmosphere of the class when teaching- learning
process. In both classes, the writer found the teacher did not make lesson plan for teaching at the class.
c. Test
The writer gave the test to the experiment class and control class, to know the result of taught English vocabulary using lesson plan.
6. Technique of Data Analysis
After getting the data she needs in research, the writer processed and analyzes through the following steps:
31
a. Investigating the worksheet of the students, giving score and described score in
table. b.
Determining mean of variable X
1
with the formula:
1 1
1
N X
M Σ
=
c. Determining mean of variable X
2
with the formula:
2 2
2
N X
M Σ
=
d. Determining deviation score variable x1 with the formula:
1 1
1
M X
X −
=
e. Determining deviation score variable x2 with the formula:
2 2
2
M X
X −
=
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Drs. Sudijono, Pengantar Statistik Pendidikan, Jakarta : Pt. Raja Grafindo Persada, 1995, p. 300
f. Analyzing the result by using calculation of the t-test as formula:
2 1
M M
t −
=
] .
][ [
] ][
[
2 2
2 2
1 2
1 2
2 2
1
N N
N N
N N
N X
X −
+ +
Σ +
Σ
Note: M
1
: The average score of experiment class M
2
: The average score of control class X
1
: Sum of the squared deviation score of experiment class X
2
: Sum of the squared deviation score of control class N
1
: The number of students of experiment class N
2
: The number of students of control class 2
: Constant number g.
Giving interpretation
7. Hypothesis
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