| Sumario: | An alternating treatment design was used with two subjects in their preschool settings. During the four phases of the study, the subjects received treatment with the switch alone, switch-activated computer programs, switch-activated toys, and alternating sessions with the two devices. Thirty-two data points were achieved for Subject 1; 40 data points were achieved for Subject 2. All sessions were videotaped, and three behaviors were coded: independent switch activation, orientation to the stimulus, and attention to the stimulus. Both subjects demonstrated their highest performance with all three measured behaviors when both the computer programs and the toys were used. Results of the study indicate that young children with severe and profound disabilities perform best when provided with a variety of multimodal stimuli. They also appear to perform best when allowed sufficient time to interact on their own with minimal extrinsic feedback.
|
|---|