5. What are the characteristics of a perfect item a. D-50% and d·1.00 b.D-100% a

Question

5. What are the characteristics of a perfect item a. D-50% and d·1.00 b.D-100% and d-.50 c, D-50% and d _ +1.00 d, D=50% and d =50 6. Which of the following is used to complete the stem? b. alternatives e. detractors d. distracters 7. According to the formula below, what does the"T represent? D-(Nh +NIVT a. number of individuals taking the test b. total number of items on the test c. total number of responses to correct responses 8. All of the following would explain why a multiple- choice item fails to discriminate adequately except which one? a·The choice alternatives contained grammatical clues. b. None of the items reflected a clearly defined learning the item d. number of c. No plausible distracter was among the choice alternatives. d. All of the distractors were plausible. 9. The stem of a multiple-choice item should a, be no longer than the alternatives b. be self-contained e. contain at lcast one blank d. be written as a statement rather than a question 10. A good multiple-choice achievement test should discriminate between those who know the material and those who do not.

Explanation / Answer

5. The answer is Option D, wherein the item difficulty, D is 50% and the item discrimination, d is 1.00.

6. The answer is Option B, alternatives. A stem is first presented and is followed by a range of alternatives for the respondent to choose from.

7. The answer is Option A, total number of individuals taking the test.

8. The answer is Option D, that all the distractors were plausible. This would make the item difficult to guess and only those ondovuals with high ability would be able to respond correctly to it.

9. The answer is Option B. A stem should be self contained and should be comprehended without having to look at the alternatives.

10. The answer is True. Only those who know the material should score high on the achievement test.

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