ANALYSIS OF TESTING
Item Analysis--The systematic evaluation of the effectiveness of each item of a test.
An item analysis can tell us:
1. The difficulty of the item.
2. The discriminating power of the item.
3. The effectiveness of each alternative.
Simplified Item-Analysis Procedure
There are a number of different item-analysis procedures that might be applied (Downie, 1967).
For informal achievement tests used in teaching, only the simplest of procedures seems
warranted. The following steps outline a simple but effective procedure. We shall use 32 test
papers to illustrate the steps.