Admins and teachers can remove students within an assessment.
Step 1: Click on dashboard
Step 2: Choose the assessment from the subscribed assessments
Step 3: Click on manage users (people looking icon)
Step 4: Click on the small tick box (on left hand side of the screen) to remove the student and the report.
Step 5: Click on remove users (on the right hand side of the screen)
Student's record will be deleted.