6. Determining Standard Error of Mean of Variable Y by using the formula
below:
√ SE
My :
Standard error of control class 7.
Determining Standard Error of Difference Mean of Variable X and Y by using the formula below:
√
8. Determining Value of t
by using the formula below:
Mx : Mean of the score of experimental class
My : Mean of the score of control class
SEMx : Standard error of experimental class SEMy : Standard error of control class
9. Determining t table in significance level 5 and 1 with Degree Freedom
df by using formulas below:
Df : Degree of freedom N
: Number of students of experimental class N
: Number of students of control class
Notes: Variable X: Teaching procedure text by using picture.
Variable Y: Teaching procedure text by using textbook.
G. Statistical Hypotheses
In order to get the answer of the hypothesis above, the researcher proposes alternative hypothesis Ha and null hypothesis H
which is provided as follows: H
= t
o
t
t
H
a
= t
o
t
t
Where: H
: There is no effect of using picture series in teaching reading of
procedure text. H
a
: There is effect of using picture series in teaching reading of procedure text.
If t-test t t-table t
t
in significant degree 5, H null hypothesis is
rejected. If t-test t
t-table t
t
in significant degree 5, H null hypothesis is
accepted.
CHAPTER IV RESEARCH FINDING AND INTERPRETATION
This chapter presents the data description which consists of the score of pre-test
and post-test of the experimental group and the controlled group. Furthermore, the description will be followed by the discussion of the research
findings.
A. Research Finding 1. Data Description
The part shows the general description of the students’ scores in both the experimental group and control group. The description is divided into some
sections: pre-test, post-test, gained score, and data analysis. And it is the data were collected from the results of students’ scores of
pre-test and post-test in both experimental group and control group. The followings are the descriptions:
a. Pre-test and Post-test Score of Experimental Group Table 4.1
The S tudents’ Pre-test and Post-test Scores of Experimental Group
10.3
Students Number PRE-TEST
POST-TEST
1 80
100 2
70 75
3 100
100 4
80 85
5 80
75 6
75 85
7 85
90 8
75 80
Students Number PRE-TEST
POST-TEST
9 65
70 10
75 90
11
45 70
12 55
70 13
80 85
14 75
80 15
65 80
16 40
60 17
50 75
18 100
100 19
75 70
20 75
95 21
85 90
22 55
85 23
90 90
24 70
85 25
45 55
26 90
100 27
65 65
28 65
85 29
85 95
30 65
80 31
90 90
32 65
75 33
70 75
Total 2385
2705 Mean
72.27 81.97
As mentioned of scores in pre-test and post-test scores of experimental group in the Table 4.1, it can be clarified that the mean score of pre-test in
experimental group was 72.27, and the mean score of the post-test was 81.97. And from the scores above, it means that there was a significant difference between the
students’ achievement of scores in pre-test and post-test in the experimental group. It proves that using picture series is effective to improve students’ reading
comprehension of procedure text.
b. Pre-test and Post-test Scores of Controlled Group Table 4.2
The S tudents’ Pre-test and Post-test Scores of Controlled Group 10.4
Students Number PRE-TEST
POST-TEST
1 80
80 2
65 70
3 65
65 4
60 65
5 50
70 6
70 75
7 80
85 8
80 90
9 75
80 10
85 80
11 65
70 12
75 80
13 60
70 14
85 70
15 60
65 16
65 75
17 70
80 18
85 75
