Teacher Roland gave a test in Chemistry. The facility index of item No. 10 is 82%. The best way to describe item number is 10 is ________.*1 pointa. Moderately difficult itemb. Very difficult itemc. Difficult itemd. . Very easy item
Question
Teacher Roland gave a test in Chemistry. The facility index of item No. 10 is 82%. The best way to describe item number is 10 is ________.*1 pointa. Moderately difficult itemb. Very difficult itemc. Difficult itemd. . Very easy item
Solution
The best way to describe item number 10 is d. Very easy item. The facility index of an item in a test refers to the percentage of students who answered the item correctly. A high facility index (like 82%) means a high percentage of students got the item right, which suggests that the item is relatively easy.
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