Analysis of Data Research Findings 1. Description of Data

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2. Analysis of Data

From the data above, the students were divided into three groups based on the score : upper, middle, and lower group to find level of difficulty. In the following table, it will be shown the data of students’ response or answer in English summative test. It is tested on June 9th, 2010 with the given time 120 minutes. 1. Number 1 is a good item, because there are 15 students from 28 students who can answer correctly. The difficulty level of this item is 0.54. It means that it is range 0.15 to 0.85 that belongs to moderate items. 2. Number 2 is a good item, because there are 11 students from 28 students who can answer correctly. The difficulty level of this item is 0.39. It means that it is range 0.15 to 0.85 that belongs to moderate items. 3. Number 3 is an easy item, because most students can answer it correctly. There are 27 students from 28 students who can answer correctly. The difficulty level of this item is 0.96. It means that it is range 0.86 to 1.00 that belongs to easy item 4. Number 4 is a difficult item, because there are only 3 students from 28 students who answer it incorrectly. The difficulty level of this item is 0.11. It means that it range 0.00 to 0.14 that belongs to difficult item. 5. Number 5 is a good item, because there are 16 students from 28 students who can answer correctly. The difficulty level of this item is 0.57. It means that it range 0.15 to 0.85 that belongs to moderate item 35 6. Number 6 is a difficult item, because there aren’t students who answer correctly. The difficulty level of this item is 0.00. It means that it range 0.00 to 0.14 that belongs to difficult item. 7. Number 7 is a difficult item, because there are 3 students from 28 students who answer correctly. The difficulty level of this item is 0.11. It means that it range 0.00 to 0.14 that belongs to difficult item. 8. Number 8 is a difficult level, because there are 4 students from 28 students who can answer it correctly. The difficulty level of this item is 0.14. It means that it range 0.00 to 0.14 that belongs to difficult item. 9. Number 9 is a good item, because there are 12 students from 28 students who can answer it correctly. The difficulty level of this item is 0.43. It means that it range 0.15 to 0.85 that belongs to moderate item 10. Number 10 is a good item, because there are 17 students from 28 students who can answer it correctly. The difficulty level of this item is 0.61. It means that it range 0.15 to 0.85 that belongs to moderate item. 11. Number 11 is a good item, because there are 20 students from 28 students who can answer it correctly. The difficulty level of this item is 0.71. It means that it range 0.15 to 0.85 that belongs to moderate item 12. Number 12 is a good item, because there are 19 students from 28 students who can answer it correctly. The difficulty level of this item is 0.68. It means that it range 0.15 to 0.85 that belongs to moderate item. 36 13. Number 13 is a good item, because there are 18 students from 28 students who can answer it correctly. The difficulty level of this item is 0.64. It means that it range 0.15 to 0.85 that belongs to moderate item. 14. The number 14 is good item. Because there are 13 students from 28 students who can answer it correctly. The difficulty level of this item is 0.46. It means that it range 0.15 to 0.85 that belongs to moderate item 15. The number 15 is difficult item. Because, there are 4 students from 28 students who can answer it correctly. The difficulty level of this item is 0.14. It means that it ranges 0.00 to 0.14 that belongs to difficult item. 16. The number 16 is a good item. Because, there are 5 students from 28 who answer it correctly. The difficulty level of this item is 0.18. It means that it ranges 0.00 to 0.14 that belongs to a moderate item. 17. The number 17 is a good item. Because, there are 11 students from 28 students who can answer it correctly. The difficulty level of this item is 0.39. It means that it ranges 0.15 to 0.85 .that belongs to a moderate item. 18. The number 18 is a good item. Because, there are 11 students from 28 students who can answer it correctly. The difficulty level of this item is 0.39. It means that it range 0.15 to 0.85 that belongs to a moderate item. 19. The number 19 is a good item. Because, there are 18 students from 28 students who can answer it correctly. The difficulty level of this item is 0.64. It means that it ranges 0.15 to 0.85 that belongs to a moderate item. 37 20. The number 20 is an easy item. Because, there are 23 students from 28 students who can answer it correctly. The difficulty level of this item is 0.82. It means that it ranges 0.86 to 1.00 that belongs to an easy item. 21. The number 21 is a good item. Because, there are 16 students from 28 students who can answer it correctly. The difficulty level of this item is 0.57. It means that it ranges 0.15 to 0.85 that belongs to a moderate item. 22. The number 22 is a good item. Because, there are 21 students from 28 students who can answer it correctly. The difficulty level of this item is 0.75. it means that it range 0.15 to 0.85 that belongs to a moderate item. 23. The number 23 is a good item. Because, there are 5 students from 28 students who can answer it correctly. The difficulty level of this item is 0.18. It means that it range 0.00 to 0.14 that belongs to a moderate item. 24. The number 24 is a good item. Because, there are 19 students from 28 students who can answer it correctly. The difficulty level of this item is 0.68. It means that it range 0.14 to 0.85 that belongs to a moderate item. 25. The number 25 is a difficult item. Because, there aren’t students who can answer it correctly. The difficulty level of this item is 0.00.It means that it ranges 0.00 to 0.14 that belongs to a difficult item. 26. The number 26 is an easy item. Because all of students who can answer it correctly. The difficulty level of this item is 1.00. It means that it range 0.86 to 1.00 that belongs to an easy item. 38 27. The number 27 is a good item. Because, there are 9 students from 28 students who can answer it correctly. The difficulty level of this item is 0.32. It means that it range 0.15 to 0.85 that belongs to a moderate item. 28. The number 28 is a good item. Because, there are 13 students from 28 students who can answer it correctly. The difficulty level of this item is 0.46. It means that it range 0.15 to 0.85 that belongs to a moderate item. 29. The number 29 is a good item. Because, there are 7 students from 28 students who can answer it correctly. The difficulty level of this item is 0.25. It means that it range 0.15 to 0.85 that belongs to a moderate item. 30. The number 30 is a difficult item. Because, there are 2 students from 28 students who can answer it correctly. The difficulty level of this item is 0.07. It means that it range 0.00 to 0.14 that belongs to a difficult item. 31. The number 31 is a good item. Because, there are 22 students from 28 students who can answer it correctly. The difficulty level of this item is 0.79. It means that it range 0.15 to 0.85 that belongs to a moderate item. 32. The number 32 is a good item. Because, there are 13 students from 28 students who can answer it correctly. The difficulty level of this item is 0.46. It means that it range 0.15 to 0.85 that belongs to a moderate item. 39 33. The number 33 is a good item. Because, there are 6 students from 28 students who can answer it correctly. The difficulty level of this item is 0. 21. It means that it range 0.14 to 0.85 that belongs to a moderate item. 34. The number 34 is a difficult item. Because, there aren’t students who can answer it correctly. The difficulty level of this item is 0.00. It means that it range 0.00 to 0.14 that belongs to a difficult item. 35. The number 35 is a difficult item. Because, there are 2 students from 28 students who can answer it correctly. The difficulty level of this item is 0.07. It means that it range 0.00 to 0.14 that belongs to a difficult item. 36. The number 36 is a good item. Because, there are 10 students from 28 students who can answer it correctly. The difficulty level of this item is 0.36. It means that it range 0.15 to 0.85 that belongs to a moderate item. 37. The number 37 is an easy item. Because, there are 27 students from 28 students who can answer it correctly. The difficulty level of this item is 0.96. It means that it range 0.86 to 1.00 that belongs to a n easy item. 38. The number 38 is a good item. Because, there are 11 students from 28 students who can answer it correctly. The difficulty level of this item is 0.39. It means that it range 0.14 to 0.85 that belongs to a moderate item. 39. The number 39 is a good item. Because, there are 8 students from 28 students who can answer it correctly. The difficulty level of this item is 0.29. It means that it range 0.15 to 0.85 that belongs to a moderate item. 40 40. The number 40 is a good item. Because, there are 19 students from 28 students who can answer it correctly. The difficulty level of this item is 0.68. It means that it range 0.15 to 0.85 that belongs to a moderate item. From the explanation above, we can see that there are 9 Items belongs to the difficult item. They are items 4, 6, 7, 8, 15, 25, 30, 34, 35. Which are it ranges 0.00 to 0.14. Furthermore, 3 items belong to the easy item. They are 3, 26, 37.Which is in range 0.86 to 1.00. The other, 28 items that belongs to the average items. They are 1, 2, 5, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20, 21, 22, 23, 24, 27, 28, 29, 31, 32, 33, 36, 38, 39, and 40. Which are it ranges 0.15 to 0.85.

3. Interpretation of Data