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Education QUESTION #6768
Question 1
A teacher constructs a 50-item MCQ test. Items 1–25 cover knowledge-level outcomes (p-values around 0.85–0.90) and items 26–50 cover application-level outcomes (p-values around 0.40–0.55). Which statement about this test's suitability for norm-referenced interpretation is MOST accurate?
  • Both halves are equally suitable for NRT because they cover all Bloom's levels
  • The application-level items (items 26–50) are more suitable for NRT because their moderate difficulty creates greater score variance, enabling better discrimination among examinees✔️
  • The knowledge-level items are better for NRT because easier items reduce test anxiety
  • NRT requires all items to have the same difficulty level, so the test is unsuitable
Correct Answer Explanation
Norm-referenced tests require substantial score variance to rank examinees accurately. Items with p-values between 0.40 and 0.60 are near optimal for NRT because they generate the widest spread of scores. Items with very high p-values (0.85–0.90) produce ceiling effects and minimal variance, reducing the test's discriminating power — making them less suitable for NRT purposes.