notes: t
: the value of t Mx
: mean score of the experimental group My
: mean score of the control group x
: individual score deviation of the experimental group y
: individual score deviation of the control group Nx
: the number of respondents in the experimental group Ny
: the number of respondents in the control group Arikunto, 2006:311
If the result of the analysis shows that there is a significant difference, the data would be analysed by using Degree of Relative Effectiveness DRE. The formula of
DRE is:
��� = �� − ��
�� × 100
notes: DRE
: Degree of Relative Effectiveness Ma
: Mean of the experimental group Mb
: Mean of the control group Masyhud, 2008:61
3.6 Operational Definitions of the Terms
The operational definitions of the terms were intended to avoid misunderstanding of the concepts used in this research, they were operationally
defined as follows:
3.6.1 Crossword Puzzle
A Crossword puzzle in this research was a game that was used to teach vocabulary to the students of MTs Kebunrejo Banyuwangi. It was an
arrangement of numbered squares to be filled with words, a letter to each square. The Crossword Puzzles in this research were printed in banner and the
size were 1 x 1.5 meters, so the students can see the banners clearly. These Crossword Puzzles were interesting since the Crossword Puzzles in the banner
were colorful. By using crossword puzzles, the students were trained to think and find the relationship with their knowledge to fill in the Crossword Puzzles.
These kinds of game could make the students more enjoyable in learning the vocabulary.
3.6.2 Vocabulary Achievement
In this research, vocabulary achievement referred to the students’ ability to get more vocabularies from the crossword puzzle. It was shown by the students’
scores of the vocabulary test after they learn vocabulary through crossword puzzles. Vocabulary in this research was an English vocabulary.
CHAPTER 4 RESEARCH RESULT AND DISCUSSION
This chapter presents the description of the treatment, the result of the supporting data, the result of homogeneity test, the analysis of try out test, the result
of primary data, the hypothesis verification, the degree of relative effectiveness, and the discussion. Further discussion about the results of this research is presented
below.
4.1 The Descriptions of the Treatment
In this research, there were two classes that were chosen as the respondents. They were the experimental group VIII D and the control group VIII E. As stated
in Chapter III that the experimental group got the treatment that was it was taught vocabulary by using Crossword Puzzles, while the control group got no treatment or
it was taught vocabulary without using Crossword Puzzles. The teaching learning process was conducted in two meetings for each group during this research. The
schedule of administering the research treatment can be seen in the following table.
Table 4.1 The Schedule of the Research Activities No.
Activities Dates
1. Interviewing the English teacher
August 25
th
, 2014 2.
Taking the documentation November 15
th
, 2014 3.
Administering the homogeneity test November 17
th
-19
th
, 2014
4. Analyzing the results of homogeneity test
November 20
th
,
2014
5. Teaching the experimental group
November 24
th
, 27
th
, 2014 6.
Teaching the control group November 26
th
, 27
th
, 2014 7.
Administering try out test December 2
nd
, 2014 8.
Analyzing the results of the try out test December 2
nd
, 2014
34
