9. The last procedure is determining dfdegree of freedom with formula:
H. Stastistical Hypotheses
The statistical hypothesis of this study can be seen as: Null Hypothesis Ho
: There is no significance difference after crossword puzzle strategy is used on students‟
vocabulary understanding in the 7th grade students of MTs. Muhammadiyah 1 Ciputat.
Alternative HypothesisHa : There is a significance difference after
crossword puzzle strategy is used on students‟ understanding in the 7th grade of MTs.
Muhammadiyah 1 Ciputat.
And then, the criteria used as follows: 1. If t-test to t-table tt in significant degree of 0,05, Ho null hypothesis is
rejected. It means that the ratesof mean score of the experimental group are higher than the controlled group. The using of crossword puzzle is effective
towards students‟ vocabulary understanding. 2. If t-test to t-table tt in significant degree of 0,05, Ho the null hypothesis
is accepted. It means that the rates of the means score of the experimental group are same as or lower than the controlled group. The using of crossword
puzzle is not effective towards students‟ vocabulary undersatnding
28
CHAPTER IV RESEARCH FINDINGS
A. Data Description
The data were collected from students pre-test and post-test of both classes. The data which were obtained were divided into two tables. The table 4.1 showed
the student‟s score and achievement in experimental class and the table 4.2 showed the student‟s score and achievement in control class. each table has four
columns; the first column showed the number of students, the second and the third column showed pre-test and post-test score, and the last column showed the
gained score from pre-tets and post-test.
1. The Data of Experimental Class
Table 4.1 The Students’ Scores of Experimental Class
Using Crossword Puzzle
Students
N
Nilai
Pre-test
Nilai
Post-test
Gained Score 1.
66 83
17 2.
68 94
26 3.
50 83
33 4.
70 87
17 5.
71 83
12 6.
70 80
10 7.
60 86
26 8.
50 84
34 9.
66 86
20 10.
60 90
30 11.
66 88
22 12.
50 70
20 13.
76 94
18 14.
63 74
11 15.
66 76
10 16.
60 78
18 17.
63 80
17
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