Statistical Hypothesis RESEARCH METHODOLOGY
16 Student 16 77
Student 16 81
17 Student 17 69
Student 17 76
18 Student 18 70
Student 18 80
19 Student 19 77
Student 19 75
20 Student 20 77
Student 20 76
21 Student 21 68
Student 21 75
22 Student 22 77
Student 22 77
23 Student 23 65
Student 23 70
24 Student 24 71
Student 24 74
25 Student 25 72
Student 25 80
Total Score 1808
1880
Mean 72.32
75.2
As mentioned of scores in pre-test in the table, it can be clarified that the mean score of pre-test in experimental class was 72.32, while the mean score of
pre-test in controlled class was 75.2. And from the scores of both classes, it means that there was a difference between the students’ achievement of scores in pre-test
experimental class and controlled class, the controlled class got the higher mean score than the experimental class.
Chart 4.1 The students’ score of pre-test of experimental class controlled class
Table 4.2 The students’ scores of post-test of experimental class VIII-1 controlled
class VIII-2
No. Experimental Class Score Controlled Class Score
1 Student 1
74 Student 1
79 2
Student 2 85
Student 2 78
3 Student 3
81 Student 3
80 4
Student 4 82
Student 4 75
5 Student 5
81 Student 5
75 6
Student 6 84
Student 6 73
7 Student 7
83 Student 7
75 8
Student 8 86
Student 8 81
9 Student 9
79 Student 9
74 10
Student 10 77
Student 10 73
11 Student 11
82 Student 11
80 12
Student 12 82
Student 12 72
13 Student 13
81 Student 13
85
8 4
9 7
8 14
2 4
6 8
10 12
14 16
X Class Y Class
Pre-Test Score
Nilai 65-70 Nilai 71-75
Nilai 76-81
14 Student 14
79 Student 14
75 15
Student 15 81
Student 15 83
16 Student 16
86 Student 16
83 17
Student 17 79
Student 17 80
18 Student 18
81 Student 18
84 19
Student 19 79
Student 19 80
20 Student 20
81 Student 20
79 21
Student 21 79
Student 21 77
22 Student 22
79 Student 22
79 23
Student 23 79
Student 23 69
24 Student 24
82 Student 24
78 25
Student 25 79
Student 25 84
Total Score
2021 1951
Mean 80.84
78.04
The table 4.2 above informs that the mean score of post-test in experimental class was 80.84, and the mean score of post-test in controlled class
was 78.04. It is means that there was a significant score of experimental class and controlled class in post-test, controlled class was increased in post-test session
than in pre-test. But, for this session, the experimental class got the higher score than the controlled class. It proves that there is effect of picture
series on students’ writing ability of recount text.