4. Preliminary Field Testing
In the fourth step, preliminary field testing, the writer conducted the test to the students of X grade of Pangudi Luhur St. Yosef Surakarta Senior High School
in 20092010 academic year on April 29, 2010. The students were asked to read the texts and give cross x to the correct answer of the questions in forty-five
minutes 45’. After conducted the test, the writer obtained the answer sheets of the
students, counted IF, ID, and distractor efficiency and also the result of the questionnaire. Here are the research results of Preliminary Field Testing:
a. The result of counting IF, ID, and distractor efficiency
Item No.
IF ID Number of student answer the distractor
A B C D E 1. 0.40 0.56 19 103 96 16 2
2. 0.76 0.40 17 179 18 18 1 3. 0.44 0.42 105 61 30 14 25
4. 0.60 0.33 1 2 6 84 143 5. 0.03
- 0.01 3 201 23 8 1
6. 0.48 0.70 36 112 47 16 20 7. 0.57 0.59 47 8 135 15 26
8. 0.78 0.42 7 10 185 12 22 9. 0.01 0.01 3 203 12 15 3
10. 0.28 0.46 64 66 27 39 36
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Item No.
IF ID Number of student answer the distractor
A B C D E 11. 0.43 0.45 21 25 72 102 12
12. 0.78 0.18 29 185 7 11 3 13. 0.74 0.24 174 47 12 0 3
14. 0.30 0.06 31 7 44 70 81 15. 0.80 0.27 19 16 5 7 187
16. 0.56 0.60 50 132 24 22 5 17. 0.66 0.36 22 45 155 3 10
18. 0.39 0.47 81 26 21 13 92 19. 0.36 0.35 102 85 28 8 11
20 0. 37 0.26 25 3 7 88 112
Table 4.3: The Results of Item Facility IF and Item Discrimination ID From the table above, the result of IF and ID could be seen. This result
was used for determining next step, which is Main Product Revising. Appropriate test items will generally have IFs that range between 0.15 and 0.85 Brown, 2004:
59. In addition, Brown 2004: 68 also stated high discriminating power would approach a perfect 1.0 one and no discriminating power at all would be 0 zero.
Good test items should fulfill the criteria of adequate point of IF and ID. While the test items, which could not fulfilled the criteria should be revised.
For question number 1 the correct answer was C. The IF is 0.40 and the ID is 0.56. There were 19 students are lured by item A, 103 students were lured by
item B, 16 students were lured by item C, and 2 students were lured by item E.
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While 96 students answer number 1 correctly. The result of IF was 0.40; it meant that number one had appropriate test items. While the result of ID was 0.56, it
meant that number one had moderate discrimating power. It could be concluded that the distractors for number one were acceptable.
Number 2 had the IF point 0.76 and the ID point was 0.40. The correct answer was B. there were 17 students were lured by item A, 18 students were
lured by item C, 18 students were lured by item D and only 1 student was lured by item E. there were 179 students answer number 2 correctly. The distractors for
number 2 were acceptable. Number 2 had appropriate test item because the IF point was 0.76. The discriminating power for number two was 0.40, which meant
that it was not very low discriminating power. The correct answer for number 3 was A. There were 105 students
answered A. there were 61 students were lured by item B, 30 students were lured by item C, 14 students were lured by item D, and 25 students were lured by item
E. The result of If was 0.44, which meant that it had appropriate test items. While the result of ID was 0.42, which meant that it had not very low discriminating
power. It could be concluded that the distractors for number 3 were acceptable. For question number 4, the correct answer was E. there were 143 students
answered correctly. There were 1 student was lured by item A, 2 students were lured by item B, 6 students were lured by item C, and 84 students were lured by
item D. The distractors for number 4 were acceptable since the IF point was 0.60 which meant that number 4 had appropriate test item and the ID point was 0.33
which meant that the discriminating power was adequate.
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Number 5 had D as the correct answer. There were only 8 students who could answer correctly. 3 students were lured by item A, 201 students were lured
by item B, 23 students were lured by item C, while 1 student was lured by item E. The IF point was 0.03. The IF point was too low. Therefore, number 5 did not
have appropriate test item. While the result of ID was -0.01. Since it has negative point, number 5 did not have discriminating power. The ID point was negative
because the number of lower ability students who could answer correctly was higher than the upper ability students.
The correct answer for number 6 was B. there were 36 students were lured by item A, 47 students lured by item C, 16 students were lured by item D, and 20
students were lured by item E. The result of IF was 0.46 while the Id was 0.70. The IF point showed that number 6 had appropriate test items. While the ID point
showed that number 6 had high discriminating power. Therefore, the distractors were acceptable.
For questions number 7, the correct answer was C. there were 112 students chose C. There were 47 students were lured by item A, 8 students were lured by
item B, 15 students were lure by item D, and 26 students were lured by item E. The IF point was 0.57 and the ID point was 0.59. From the IF point, it could be
concluded that number 7 had appropriate test item. While ID point showed that number 7 had moderate discriminating power. The distractors for number 7 were
acceptable. Number 8 had C as the correct answer. There were 185 students answered
correctly. 7 students were lured by item A, 10 students were lured by item B, 12
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students were lured by item D and 22 students were lured by item E. The IF point was 0.78. It meant that number 8 had appropriate test items. While ID point was
0.42. It meant that it had moderate discriminating power. The distractors were acceptable.
The correct answer of number 9 was A. there were only 3 students answer correctly. There were 203 students answered B, 12 students answered C, 15
students answered D and 3 students answered E. The IF point 0.01. It meant that number 9 did not have appropriate test items since only 3 students from 236
students answered correctly. The ID point was 0.01, which meant that number 9 had very low discriminating power. Therefore, the disctractors were not
acceptable and should be revised. Number 10 had B as the correct answer. There were 66 students answered
correctly. 64 students were lured by item A. 27 students were lured by item C. 39 students were lured by item E. The IF point was 0.28 and the ID point was 0.46.
The IF point showed that number 10 had appropriate test items. While the ID point showed that number 10 had moderate discriminating power. Therefore, the
distractors were acceptable. The correct answer for number 11 was D. 102 students answered correctly.
21 students were lured by item A. 25 students were lured by item B. 72 students were lured by item C. 12 students were lured by item E. The IF point was 0.43
which meant that number 11 had appropriate items. While the ID point was 0.45, which meant that number, 11 had moderate discriminating power. The distractors
were acceptable.
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Number 12 had B as the correct answer. There were 185 students answered correctly. There were 29 students answered A, 7 students answered C,
11 students answered D, and 3 students answered E. The IF point was 0.78 and the ID point was 0.18. Number 12 had appropriate test items and adequate
discrimination power. The distractors were acceptable. For number 13, the correct answer was A. there were 174 students
answered correctly. 47 students were lured by item B. twelve students were lured by item C. and 3 students were lured by item E. The IF point for number 13 was
0.74 and the ID point was 0.24. The IF point showed that number 13 had appropriate test items. While the ID point showed that number 13 had adequate
discrimination power. The distractors were acceptable. The correct answer for number 14 was D. There were 70 students
answered correctly. Item A was chosen by 31 students. Item B was chosen by 7 students. Item C was chosen by 44 students. While item E was chosen by 81
students. The IF point was 0.30 and the ID point was 0.06. Number 14 had appropriate test items. It can be seen from the IF point. On the other hand, the ID
point was very low and approached zero. It meant that number 14 had very low discriminating power. Therefore, the distractors were not acceptable. Number 14
should be revised. Number 15 had E as the correct answer. 187 students answered correctly.
19 students answered A. 16 students answered B. 5 students answered C. While 7 students answered D. The IF point was 0.80 and ID was 0.27. The distractors of
number 15 were acceptable. Number 15 should not be revised.
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The correct answer for number 16 was B. there were 132 students answered correctly. 50 students were lured by item A. 24 students were lured by
item C. 22 students were lured by item D. 5 students were lured by item E. The IF point was 0.56 and the ID point was 0.60. From the IF point, it could be
concluded that number 16 had appropriate test item. While from the ID point, it could be concluded that number 16 had high discriminating power. Therefore, the
distractors were acceptable. C was the correct answer for number 17. 155 students answered correctly.
22 students answered A, 45 students answered B, 3 students answered D, and 10 students answered E. The IF point was 0.66 which meant that number 17 had
appropriate items. While the ID point was 0.36, which meant that number, 17 had discriminating power. The distractors were acceptable.
For question number 18 the correct answer is E. The IF is 0.39 and the ID is 0.47. There are 81 students were lured by item A, 26 students are lured by item
B, 21 students are lured by item C, and 13 students were lured by item D. While 92 students answer number 18 correctly. The result of IF was 0.39; it meant that
number one had appropriate test items. While the result of ID was 0.47, it meant that number one had moderate discrimating power. It could be concluded that the
distractors for number 18 were acceptable. Number 19 had the IF point 0.36 and the ID point was 0.35. The correct
answer was B. there were 102 students were lured by item A, 28 students were lured by item C, 8 students were lured by item D and 11 student was lured by
item E. there were 85 students answer number 19 correctly. The distractors for
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number 19 were acceptable. Number 19 had appropriate test item because the IF point was 0.76. The discriminating power for number two was 0.40, which meant
that it was not very low discriminating power. The correct answer for number 20 was D. There were 88 students
answered correctly. Item A was chosen by 25 students. Item B was chosen by 3 students. Item C was chosen by 7 students. While item E was chosen by 112
students. The IF point was 0.37 and the ID point was 0.26. Number 20 had appropriate test items since the IF point was adequate. The ID point showed that
number 20 had adequate discriminating power. Therefore, the distractors were acceptable.
b. The Questionnaire
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