Item analysis statistics are some of the most powerful indicators of item quality, and these are tools that any test developer should be using in their work.
They help us find out whether items need to be improved, sent to the scrap heap, or left as they are because they meet all the criteria for being included in an assessment.
This eBook provides instruction on the principles of item analysis using a variety of examples. It provides guidance on what to look for and how to apply these principles in your work.
This eBook covers:
A quick overview on classical test theory
An introduction to item analysis
The process of conducting an item analysis
What to look for in an item analysis report
Psychometrics: The good, the bad and the ugly
Determining whether an item makes the grade