38 In which:
r = the reliability of the instrument
k = the number questions
M = the mean of the test score
S
2
= the standard deviation
3. Then, it is needed to find out the percentage of the number of students get score
≥ 60, the number of students get score 60 and also to find out the percentage of the
students’ ability in answering the test which is calculated by using the formula of Sudijono 1991:41 as follows:
P= f x 100 n
In which: P = the percentage
f = the number of frequency n = the total numbers of respondents
4. To categorize the level of the students’ ability of using conditional sentences, the
following scale is used:
39
Table 3.2 Students’ score range in SMA Cahaya Medan
Adapted from KKM Minimum Standard Scores of English subject Categories
Score
Very good 90-100
Good 80-89
Average 70-79
Poor 60-69
Very poor 0-59
40
CHAPTER IV
ANALYSIS AND FINDINGS
4.1 Data Analysis
The researcher gave a multiple choice test and completion test, which was focused on conditional sentences. This test consists of 30 items, each of conditional
sentences type has certain items; future conditional or conditional sentence type I, it has five items of multiple choice and five items of completion test, present
conditional or conditional sentence type II has five items of multiple choice and five items of completion test and past conditional or conditional sentence type III has five
items of multiple choice and five items of completion test. The researcher put the items down at random as it can be seen below.
41
Table 4.1 Conditional Sentences function and each item No
Type of Conditional Sentences
Multiple Choice
Completion Test
Number of Items
1 Future conditional or
conditional sentence type I 1,2,3,4,5
1,2,3,4,5 10
2 Present conditional or
conditional sentence type II
6,7,8,9,10 6,7,8,910
10
3 Past conditional or
conditional sentence type III
11,12,13,14,15 11,12,13,14,15 10
First, it is needed to tabulate the scores of each student. In scoring the test, the researcher used the formula of Nurkancana and Sumartana 1986 as follows:
X = R x 100
N
In which: X = the individual score
R = the number of correct answers N = the umber of questions
Table 4.2 are arranged based on the result of scoring the test and it is arranged on the highest to the lowest to distribute students’ scores in sequence as
follows.
42
Table 4.2 The Highest to The Smallest Scores
No Name
Initial Total of the Correct
Answer Score
X X
2
1 30 Fi XI
28 93
8.649 2
18 Un XI 22
73 5.329
3 26 My XI
22 73
5.329 4
08 Vi XI 21
70 4.900
5 13 Pu XI
21 70
4.900 6
47 Ab XI 21
70 4.900
7 27 Vi XI
20 66
4.356 8
45 Cl XI 20
66 4.356
9 07 Ar XI
19 63
3.969 10 25 Ra XI
19 63
3.969 11 48 Jo XI
19 63
3.969 12 28 Ma XI
19 63
3.969 13 29 Yo XI
19 63
3.969 14 03 Lo XI
18 60
3.600 15 06 Ant XI
18 60
3.600 16 17 Ko XI
18 60
3.600 17 24 Di XI
18 60
3.600 18 35 Er XI
18 60
3.600 19 43 Au XI
18 60
3.600 20 09 Jo XI
17 56
3.136 21 10 Lu XI
17 56
3.136 22 20 Ra XI
17 56
3.136 23 21 Fr XI
17 56
3.136 24 22 Ma XI
17 56
3.136 25 23 So XI
17 56
3.136 26 33 St XI
17 56
3.136 27 37 Du XI
17 56
3.136
