An exploratory study of the use of two response keyboards as a means of communication for the severly handicapped child.
D002547:Cerebral Palsy / Q000534:rehabilitation*; D002648:Child; D003142:Communication; D004193:Discrimination Learning; D005260:Female; D006801:Humans; D007858:Learning; D012054:Reinforcement, Psychology; D012656:Self-Help Devices; D014796:Visual Perception; D014825:Vocabulary