M2 =
�2 �
c. Determining deviations Variable X
1
with formula: X
1
= X1 – M1
d. Determining deviations Variable X
2
with formula: X
2
= X2 – M2
Where: M1
: Mean of post-test of experimental class M2
: Mean of post-test of control class ∑X
1 2
: Sum of square deviation square in the experimental class ∑X
2 2
: Sum of square deviation square in the control class N1
: Number of students of experimental class N2
: Number of students of control class df
: Degree of Freedom df
: N1 + N2 – 2
B. THE FINDINGS OF THE RESEARCH
1. The Description of Data
The writer conducted the library research and field research. The writer obtained the result of the students’ score in experiment and controlled class. The
writer held field research observes the teaching-learning process and the writer got the data from pre-test and post-test. The pre-test was given before the lesson
begins and the post-test was given after the lesson finished. In this chapter the writer compares the achievement of pre-test and post-
test; to know whether using small group discussion effective in reading comprehension. The scores will calculated and analysis the data.
2. The Analysis of Data
The writer makes make the table of the students’ score in order to know the result of the research. In the following, the writer gives the report concerning
the score of the students’ score. Here with the result of the test are presented in the following tables.
Table 3.1 The score of individual students’ of the experimental class
No Name
Pre-test Post-test Gained Score
1 Adam Bahtiar
75 82
7 2
Adinda Putri Yulindar 60
76 16
3 Ahmad Mustaqim
85 91
6 4
Ahmad Alvin Maulana 72
77 5
5 Azril Azwar Azizi
68 85
17 6
Cindy Astika Sari 76
80 4
7 Daffa Prayuda
80 96
16 8
Erika Wulandari 70
70 9
Eris Septiani 82
90 8
10 Ferdian Bayu Pratama 75
85 10
11 Helen Kristina 78
92 14
12 Intan Shafira 85
95 10
13 Jilly Rival Al-Fattah 55
70 15
14 Jubaedah 70
90 20
15 Junaedy Salas 45
72 27
16 Khairina Fisiga 72
87 15
17 Mela Destriyani 74
94 20
18 Muhamad Kohir 68
75 7
19 Muhamad Rizki 74
80 6
20 Nabila Ayumi 70
85 15
21 Nada Dasella 72
95 13
22 Noerva Suci Ramadhanti 60
78 18
23 Salwa Ramadhan 40
65 25
24 Siti Awaliyah 65
85 20
25 Tiyas Tantina 68
81 13
The highest score of the pre-test in experimental class is 85 The highest score of the post-test in experimental class is 96
The lowest score of the pre-test in experimental class is 40
