audiometry will be used for children who are unable to perform play audiometry. Electrophysiological data will verify levels obtained behaviorally or in those instances when behavioral information is limited. Electrical comfort levels will be set conservatively on initial programs to ensure a comfortable listening level for the child. Levels will be increased gradually at home and over several programming sessions during the first year of implant use. This approach is necessary in order to ensure comfortable listening levels are not exceeded in children who are unable to give us direct input as to how loud sounds are through the cochlear implant.