Top performers (i.e. employees) may be removed at any time by clicking on the (+) Plus option located above the list of used employee profiles.
Next, click on the remove link located on the left side of the screen below the available email fields.
To remove employees who have already completed the quiz, tick the radial for each employee profile in the list. If they have not accepted the invite, then click the Revoke Invite option to the right of the employees email address.
Once finished, click Remove on the left side of the screen or use the Cancel option to exit without removing employees or revoking invites.