If your school has an active school sync with Seneca, can review multi-class assignments.
Simply click on your multi-class assignment in the assignments page, or access the assignment via one of your classes.
This will take you to a new page which allows you to compare average score and completion rates across classes, as well as see the performance of individual students in each class too.
If a multi-class assignment has been set to classes which you do not teach but are still part of your school, you can also review their data via this page.