chapter  33
3 Pages

Item Analysis: I The Attention Deficit Disorders Evaluation Scale-Home Version

Item analysis is a statistical analysis of responses to individual items on a scale or test. Test-makers usually write many more items than they will need for the final version of their test or scale. The items are tried out with a sample of examinees, an item analysis is performed, and those items with the most satisfactory statistical properties are selected for use in the final version.