The Object of the Research

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 students Percentage of total 17 students 1. Child-children 6 35.3 2. Mouse-mice 11 64.7 3. Person-people 7 41.2 4. Tooth-teeth 10 58.8 5. Woman-women 8 47 6. Sheep-sheep 10 58.8 7. Man-men 10 58.85 8. Child-children 7 41.2 20 9. Man-men 10 58.8 10. Mouse-mice 11 64.7 11. Tooth-teeth 9 52.9 12. Deer-deer 14 82.3 13. Person-people 10 58.8 14. Woman-women 12 70.5 15. Stimulus-stimuli 17 100 16. Goose-geese 17 100 17. Sheep-sheep 12 70.5 18. Crisis-crises 17 100 19. Bacterium-bacteria 16 94.1 20. Person-people 9 52.9 21. Deer-deer 14 82.3 22. Belief-beliefs 16 94.1 23. Mouse-mice 13 76.4 24. Goose-geese 17 100 Of the total 24 test items on irregular nouns above, there are as many as 10 items that appear at least twice on the test. This is intended to investigate whether the students do the test better or even worse, as to reveal the theory of errors that a learner is said to commit an error when he or she consistently gets it wrong. The items that appeared twice are the nouns child; tooth; woman; sheep; man; deer; and goose, while the items that appeared three times are the nouns mouse and person. The noun word child shows the decreasing attainment from 6 wrong answers to 7 wrong ones. The word tooth gives a slight better increase from 10 wrong answers to 9 wrong ones. The noun word woman and sheep have their decrease from 10 errors to 12 errors. The noun word man has its stable number of 10 wrong answers. The noun words deer and goose have their consistent number of errors, i.e. 14 and 17, respectively.