significant, the range was 2.06. The stu dent‟s lowest score of the post-test
achieved was 65, and the highest one was 88.
Table 4.2. The Score of Pre-Test and Post-Test of the Controlled Class
NO. STUDENT‟S
CODE PRE-TEST
SCORE POST-TEST
SCORE GAINED
SCORE 1
R 65
67 2
2 S
74 73
-1 3
T 62
65 3
4 U
75 76
1 5
V 68
70 2
6 W
73 71
-2 7
X 65
78 13
8 Y
63 71
8 9
Z 72
70 -2
10 AB
74 70
-4 11
AC 73
75 2
12 AD
78 85
7 13
AE 78
82 4
14 AF
70 67
-3 15
AG 73
76 3
16 AH
78 80
2 17
AI 76
78 2
The Total Score The Mean Score
̅
1217 71.73
1254 73.79
37 2.17
From the pre-test of the controlled class, the writer found that some of students were lack of vocabulary and grammar. Hence, the writer focussed on
those problems, but the writer did not give any treatment.
3. The Frequency Distribution of Students’ Pre-test Scores
The data were analyzed by the writer would be presented into table to display frequency distribution of experimental and controlled class in pre-test and
post-test. a.
Experimental Class
Table 4.3. The Frequency Distribution of Pre-Test of the Experimental Class
NO. CLASS
INTERVAL LOW CLASS
BOUNDARY FREQUENCY
ABSOLUTE RELATIVE 1.
56-60 55.5
1 5.89
2. 61-65
60.5 3
17.65 3.
66-70 65.5
5 29.41
4. 71-75
70.5 6
35.29 5.
76-80 75.5
2 11.76
TOTAL 17
100
Figure 4.1. Diagram of Frequency Distribution of Pre-Test of the Experimental Class
The distribution form was made for classifying the data based on the length of interval P, number of classes K and the range R. From the table 4.3,
it presented the length interval P for the pre-test of the experimental class was 5. Then, the numbers of class interval K were 5. The diagram also presented the
lowest score that was 56 and the highest one was 80. The total numbers of
1 2
3 4
5 6
56-60 61-65
66-70 71-75
76-80
ABSOLUTE FREQUENCY
ABSOLUTE FREQUENCY
students were 17. The most frequency appearance on the frequency distributed was the score between 71-75 with the number of absolute frequency 6 or 35.29.
However, the least frequency appearance on the frequency distributed was the score 56-60 with frequency 1.
b. Controlled Class
Table 4.4. The Frequency Distribution of Pre-Test of the Controlled Class
NO. INTERVAL LOW CLASS
BOUNDARY FREQUENCY
ABSOLUTE RELATIVE 1.
62-65 61.5
4 23.53
2. 66-69
65.5 1
5.88 3.
70-73 69.5
5 29.41
4. 74-77
73.5 4
23.53 5.
78-81 77.5
3 17.65
TOTAL 17
100
Figure4.2. Diagram of the Frequency Distribution of Pre-Test of the Controlled Class
From the table and the diagram above, it presented some information. The numbers of the class interval K were 5 and the length of the interval I was 4.
Then, the lowest score was 62 and the highest one was 81. Similar with the
1 2
3 4
5
62-65 66-69
70-73 74-77
78-81
ABSOLUTE FREQUENCY
ABSOLUTE FREQUENCY
experimental class, the amount of the students in controlled group consist of 17 students.
The most frequency appearance on distribution was the score between 70- 73 with the numbers of absolute frequency 5 or 29.41 in relative frequency.
While, the least appearance was interval 66-69, the frequency is 1 or 5.88 in relative frequency. Hence, the total frequency which was formulated into relative
frequency was 100.
4. The Frequency Distribution of Students’ Post-test Scores
a. Experimental Class
Table 4.5 The Frequency Distribution of Post-test Scores of the Experimental Class
NO. INTERVAL LOW CLASS
BOUNDARY FREQUENCY
ABSOLUTE RELATIVE 1.
72-75 71,5
10 58,82
2. 76-79
75,5 3
17,65 3.
80-83 79,5
1 5,88
4. 84-87
83,5 2
11,76 5.
88-91 87,5
1 5,88
TOTAL 17
100
Figure 4.3. Diagram of Frequency Distribution of Post-Test Scores of the Experimental Class
2 4
6 8
10
72-75 76-79 80-83 84-87 88-91
ABSOLUTE FREQUENCY
ABSOLUTE FREQUENCY
