Students Y
Pre-test Post-test
11
55
70 12
50
70 13
60
65 14
65
75 15
60
70 16
50
85 17
55
75 18
45
75 19
50
85 20
45
70 21
50
80 22
50
85 23
60
65 24
65
65 25
40
60 26
35
75 27
55
65 28
45
70 29
55
55 30
50
75
Based on the Table 4.2 above figured that from 30 students in the class, the lowest score in the pre-test was 20 and the highest score was 50. After the
writer give the students material about descriptive text, the writer then gave the students post-test. The data showed in the post-test is the lowest score was 55 and
the highest score was 85 .
B. The Analysis of the Data
1. Results of Pre-test of Experimental Class and Control Class
The result of pre-test of experimental class and control class base on SPSS v.16 for windows program was gained from the steps as follows: Analyze
– description statistic
– frequencies statistic. Results gained from a pre-test in class VII.4 as an experimental class of this research are presented in a Table 4.3 below:
Table 4.3 Table of Data Description of Pre-test Results of Experimental Class
N Valid
30 Missing
Mean 51.5000
Median 50.0000
Mode 50.00
Std. Deviation 7.67329
Variance 58.879
Range 30.00
Minimum 35.00
Maximum 65.00
Sum 1545.00
Based on the Table 4.3, it can be described the data of experimental class was 30 students. The total of all data which is divided with the number of data
determined as mean score from the experimental class was 51.5. Median score was 50.00. The median was the numerical value separating the higher half of a
data sample, a population, or a probability distribution, from the lower half. The mode was defined as the element that appears most frequently in a given set of
elements. The mode score from the table was 50. The set of scores constitute a population determined as variance score was 58.87, and deviation standard was
7.673. Deviation standard is quantity calculated to indicate the extent of deviation for a group as a whole. The highest score of the experimental class was 65.00 and
the lowest score was 35.00. The sum gained from the total scores was 1545.00.
According to the Table 4.3 above, it can be made a table of frequency distribution which is presented as follows:
Table 4.4 Table of Frequency Distribution of Pre-test Result of Experiment Class
Score
Frequency Percent
35 1
3.3 40
2 6.7
45 6
20.0 50
9 30.0
55 5
16.7 60
4 13.3
65 3
10.0 Total
30 100.0
The Table 4.4 above is a tool of frequency distribution, it also can be describe by a diagram which is presented as follows:
Picture 4.1 Diagram of Pre-Test Result of Experimental Class
Result gained from a pre-test in class VII.1 as a control class of this research are presented in a Table 4.5 below:
Table 4.5 Table of Data Description of Pre- test Result of Control Class
N Valid
30 Missing
Mean 41.8333
Median 40.0000
Mode 40.00
a
Std. Deviation 7.59802
Variance 57.730
Range 25.00
Minimum 30.00
Maximum 55.00
Sum 1255.00
The Table 4.5 above shows that the data above shows that the data of the control class was 30 with sum 1255.00. Mean score from the control class was
41.83, the variance score was 57.730, and deviation standard was 7.59802. The highest score of the control class was 55.00 and the lowest score was 30.00. The
median score was 40.00 and the mode score was 40.00.
The table of frequency distribution from the data above is presented as follows:
Table 4.6 Table of Frequency Distribution of Pre-test Result of Control Class
Score
Frequency Percent
30 4
13.3 35
5 16.7
40 7
23.3 45
7 23.3
50 4
13.3 55
3 10.0
Total 30
100.0
The diagram from the data above is presented as follows:
Picture 4.2 Diagram of Pre-test Result of Control Class
