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D. The Instruments of the Research
In order to get the data of the research, the writer gave writing tests. The tests were all about the formation of the plural nouns, including both regular and
irregular ones , to identify the students‟ understanding and attainability on this
topic. However, the writer will only focus on the result of the irregular plural noun items as stated on the research title.
There are as many as 3 three parts of written test items prepared by the writer as the major instruments for doing this research enclosed in appendix,
apart from interview and observation.
E. The Technique of Data Analysis
The technique of data analysis used by the writer in this research is descriptive analysis technique percentage, the formula which is used is:
P P = Percentage
F = Frequency of error made N = Number of samples which is observed
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The formula given above is used to count on the percentage of errors for each of the items followed by each student as the sample.
In order to know the average value of the errors committed by the students, the following formula is then applied:
P = P
: Percentage F
: Frequency of wrong answer N
: Number of Sample n
: Number of items
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Anas Sujiono, Pengantar Statistic Pendidikan, Jakarta: PT. Raja Grafindo Persada, 2006
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CHAPTER IV THE RESEARCH FINDING
A. Data Description
As the writer stated in the preceding chapter, this „skripsi‟ discusses about
the errors made by the students in forming irregular plural nouns. To get the data, the writer has given the students written test which consists of 3 parts see
appendix-1. The test consists of 50 items which cover 26 items of regular forms and 24 forms of irregular forms. However, the writer will only discuss for the
irregular noun items as the point of this research. The 24 items of irregular plural nouns are taken from the three tests given.
Items from the test-1 are those number 2, 6, 10, 11, 13, 14, 15. Items of test-2 are number 9, 10, 11, 12, 13, 14, 15, 16, 19, 20, 23, 24. Items of test-3 are number 3,
4, 5, 8, 9. All of which are enclosed in the appendix pages.
Table 4.2 Students’ Test Result of the 24 items
No. Object
Number of Correct Answers
Number of Wrong Answers
1. Student 1
1 23
2. Student 2
18 6
3. Student 3
15 9
4. Student 4
13 11
5. Student 5
5 19
6. Student 6
12 12
7. Student 7
14 10
8. Student 8
11 13
9. Student 9
3 21
10. Student 10 2
22 11. Student 11
10 14
19
12. Student 12 1
23 13. Student 13
1 23
14. Student 14 10
14 15. Student 15
2 22
16. Student 16 2
22 17. Student 17
2 22
Total 122 29.9
286 70.1
From the table, it can be seen that the student with the best score is the student number 2 with 18 correct answers or 6 false ones, while the worst score is
achieved by as many as 3 students where they were only able to give 1 correct answer, each. In average value, each student was only able to make 7 correct
answers, or, they commit 17 errors on the items as the total of the items is 24. In percentage, the students‟ correct answer is only 29.9, or, their total wrong
answers reaches 70.1 which is called as errors. After showing the students‟ right and wrong answers in form of scores, the
writer would like to present all the test items along with their attainment in numbers and percentage.
Table 4.3 Number of Errors on Each item No.
Item Noun word Number of Errors
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