= Students’ posttest achievement The criterion used to answer the hypothesis of this study was described 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 average score rates of the experimental group are
higher than the control group. In other words, the use of mind mapping technique is effective on students
’ reading of narrative 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 average score rates of the experimental group are
same as or lower than the control group. In other words, the use of mind mapping technique is not effective on students
’ reading of narrative text.
38
CHAPTER IV RESEARCH FINDING AND INTERPRETATION
This chapter describes the discussion of research findings. The findings relate to the research questions that guided the study. The first section describes
general description of the data and analysis of the data, then followed by interpretation in second section.
A. Research Finding
1. The Description of the Data
The data collected by the writer during the study were derived from the result of pretest and posttest of both experimental and control class. The data of
each class were depicted into tables and figures below. The first part shows the data of experimental class and the second part shows the data of control class.
a. The Data of Experimental Class Table 4.1
Pretest and Posttest Score of Experimental Class
Students X
Pretest Posttest
1 70
65 2
70 75
3 65
60 4
60 80
5 85
95 6
95 95
7 85
85 8
60 80
9 85
95 10
90 95
11 80
95 12
60 70
13 100
100 14
95 90
15 90
90 16
85 70
17 95
80 18
95 90
19 100
100 20
70 60
21 80
80 22
75 85
23 95
95 24
80 95
25 95
95 26
85 80
27 70
90 From the Table 4.1 above, it could be seen that the scores of pretest and
posttest in experimental class were quite various. The lowest score of the pretest given to 27 students was 60. And even after the treatment was given to the
experimental class, 60 were still the lowest score in the posttest. Not different from the lowest score of pretest and posttest, the highest score of the pretest and
posttest given to 27 students was the same, which were 100. The further information about the pretest and posttest score can be seen trough the Table 4.2
and 4.3 below.
Table 4.2 Frequency Distribution Table of Pretest Result of Experimental Class
No Interval Value Frequency
1
30-40 -
2
41-50 -
3
51-60 3
4
61-70 5
5
71-80 4
6
81-90 7
7
91-100 8
Total 27
