Items with a difficulty index of _______ do not contribute to the measurement characteristics of a test.
A) 0.25
B) 0.50
C) 0.75
D) 1.0
Correct Answer:
Verified
Q7: What is the approximate optimal Item Difficulty
Q8: On _ tests,measures of item difficulty largely
Q9: A test item with a p =
Q10: A test item with a p =
Q11: Reliability relates to test _.
A)items
B)length
C)scores
D)constructs
Q13: A general recommendation is to use items
Q14: The item-total correlation is typically calculated using
Q15: Your employer wants a test that will
Q16: As a general rule,the authors of the
Q17: On a maximum performance test administered to
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