SE = standard errors X = experimental class
Y = controlled class N = number of students
df = degree of freedom
G. Statistical Hypothesis
The statistical hypothesis of this study could be seen as: Ho : µ
1
= µ
2
Ha : µ
1
≠ µ
2
Ho: There was effectiveness of using
pictures on students’ writing of recount text.
Ha: There was no effectiveness of using pictures on students’ writing of
recount text.
And then, the criteria used as follows: 1. If t-test t
o
t-table t
t
in significant degree of 0.05, Ho null hypothesis is rejected. It means that the rates of mean score of the experimental group are
higher than the control group. The using of pictures is effective on students’
writing of recount text. 2. If t-test t
o
t-table t
t
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 control group. The using of pictures is not effective on students’ writing of recount text.
CHAPTER IV RESEARCH FINDING AND INTERPRETATION
A. Data Description
The data were collected from the tenth grade students of SMA Negeri 9 Kota Tangerang Selatan for pre-test and post-test. The experimental class was X MIPA
1 and the controlled class was X MIPA 5. The data which was obtained described into two tables. Each table had five columns; the first column showed the number
of students, the second and the third column showed pre-test and post-test scores, the fourth column showed the gain score from pre-test and post-test, and the last
column showed the catogorization in post test score.
1. The Data of Experimental Class X MIPA 1
Table 4.1 Pre-test and Post-test of Experimental Class
Name Pre-test score
Post-test score
Gained score
Categorization in post test
Student 1
50 62
12
Fair Student 2
67 79
12
Good Student 3
65 79
14
Good Student 4
46 78
32
Good Student 5
66 88
22
Excellent Student 6
38 72
34
Good Student 7
88 90
2
Excellent Student 8
90 90
Excellent Student 9
78 87
9
Excellent Student 10
49 80
31
Excellent Student 11
52 77
25
Good Student 12
80 85
5
Excellent Student 13
77 90
13
Excellent Student 14
62 82
20
Excellent
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