Follow this guide if your site was created without the help of the form provided by ITS. Follow the Add others to a SharePoint Site if the form provided by ITS was used to create your site.
This article covers how site owners remove users from a SharePoint site.
Editing Users
Navigate to s.uconn.edu/sharepoint and click on your site.
Click Share in the top right corner.
In the popup toolbar, click on the carets to expand the groups.
Click on the permissions of the user you would like to edit and choose a new access level.
