Improving Test Items with Item Analysis
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Questions and Answers

What is the formula to calculate the difficulty index?

  • DF = n / N (correct)
  • DF = n + N
  • DF = N - n
  • DF = N / n

    • What is the interpretation of a difficulty index of 0.35 or 35%?

  • The item is difficult and only 35% of the students got it correct (correct)
  • The item is easy and most students got it correct
  • The item is difficult and only a few students got it correct
  • The item is moderate and half of the students got it correct

    • What is the purpose of calculating the discrimination index?

  • To determine the difficulty of the item
  • To identify the distractors in the item
  • To determine the total number of students who took the test
  • To determine the effectiveness of the item in distinguishing between students who are knowledgeable and those who are not (correct)

    • What is the recommendation for the test item based on the analysis of the level of difficulty, discrimination, and distractors?

    <p>Retain the test item but change option D to make it more realistic</p> Signup and view all the answers

    What is the minimum percentage of examinees that should choose the incorrect option for it to be considered effective?

    <p>5%</p> Signup and view all the answers

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