discrimination formula

How Do You Identify Item Discrimination?

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How Do You Identify Item Discrimination? Determine the Discrimination Index by subtracting the number of students in the lower group who got the item correct from the number of students in the upper group who got the item correct. Then, divide by the number of students in each group (in this case, there are five

What Is Calculated When You Examine The Proportion Of Test Takers Who Get An Item Correct?

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What Is Calculated When You Examine The Proportion Of Test Takers Who Get An Item Correct? T/F: An item analysis can be performed before a test is administered. … What is calculated when you examine the proportion of test takers who get an item correct? Difficulty index. What is represented by the proportion of correct