3.10.1 Pre-test
The students were given a pre-test in starting the data collection to identify the English words vocabulary achievement. The pre test was conducted to 38
students at SMP N 34 Semarang. The test was monitored to get the students do seriously. Here, they were not allowed either to open dictionaries or to ask other
students
’
answer.
3.10.2 Post-test
A treatment was given to the students before the post-test was conducted. Here, for the experimental group, alphabet game was used for teaching English
words vocabulary to the students. For the control group, conventional strategy was used for teaching English words vocabulary. By doing this, the students
were expected to have better English words vocabulary. It is hoped, the experimental group would be better than the control group in achieving the
English words vocabulary post-test. The post-test was conducted to measure the students
’
abilities after the treatment. The test contained the same items as in the pre-test. Besides, it was
given to the same experimental and control groups. Then the results were analyzed.
3.10.3 Analyzing
The obtained data were analyzed to get the final result. T-test formula was used in this research to analyze the data. It showed the final result from both
experimental and control groups given different treatments. The formula is showed as follows:
Where: t : t-value
: the mean of the experimental group : the mean of the control group
n
e
: the number of the students in experimental group n
k
: the number of the students in control group S
2 e
: the deviation of the experimental group S
2 k
: the deviation of the control group If the value of t
count
t
tabel
, it can be concluded that there is a significant difference between experimental group and control group.
k e
k e
n 1
n 1
s X
X t
2 1
1
2 2
k e
k k
e e
n n
S n
S n
s
e
x
k
x
46
CHAPTER IV RESEARCH FINDINGS AND DATA ANALYSIS
This chapter presents the result of the data analysis and discussion about the result which presents try-out finding, pre-test and post-test findings, test
significance, discussion of the research findings.
4.1 Try Out Finding
Kategori