This add-on allows you to check whether your exams and quizzes are standard, valid and reliable and make improvements accordingly.
Google Spreadsheet Add-on for Classical Item and Test Analysis
This add-on allows you to quickly generate all the Classical Item and Test Analysis statistics, reports and charts easily with only a few clicks.
With add-on you can easily perform complete item analysis procedure and evaluate the quality of exams. The add-on computes both item and test level statistics. Some of these statistics are listed below: