The higher the item difficulty index (i.e., 0.00 to 1.00) , the ________ the item.
A) easier
B) harder
C) more reliable
D) less reliable
Correct Answer:
Verified
Q19: Validity evidence is to _ as item
Q20: In evaluating an instrument's validity, practitioners should:
A)always
Q21: One fundamental assumption of item response theory
Q22: Validity is explained as the gradual accumulation
Q23: An important parameter in item response theory
Q25: Briefly explain the basis of item response
Q26: Discuss the theoretical movement from considering validity
Q27: There are many methods of gathering construct
Q28: The Standards for Educational and Psychological Testing
Q29: The difference between the percentage of examinees
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