Unit5disc2 Template

The following grid presents both item difficulty and discrimination indices for four different items on the test, THING.

 

THING

Item-Difficulty Index

Item-Discrimination Index

Decision: Retain or Remove

Item 1

1.00

0.00

 

Item 2

.60

.20

 

Item 3

.60

.60

 

Item 4

.60

-.100

 

 





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