Delete a Session
You can delete a session to remove the virtual student grouping assigned to test at the same time. This deletes test data for completed test administrations.
Prerequisites
Before you can delete a session, you must first remove all students from the session. If you don't remove students from the session, an error message appears.

Step-by-Step 
- From Testing, select Sessions.
Type a session name into the search field.
- Click the checkbox next to the session you want to delete.
Click Start and select Delete Sessions.
- Click the checkbox next to the session to confirm that you want to delete it.
Click Delete.
Effects
After you delete a test session, you cannot restore it.