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An investigation was conducted to demonstrate the application of a computerized assessment procedure for determining the preferences of persons with severe handicaps. A computer program was designed to interpret subjects' microswitch activations to produce three distinct types of events (visual, auditory, and tactile). A combination of a multiple baseline design across subjects with a multiple treatment design involving three separate conditions was used. The data obtained from the computerized assessment procedure revealed idiosyncratic preference patterns for the three subjects. Results of the investigation demonstrated that the preferences of severely handicapped individuals can be systematically assessed and analyzed.
John Dattilo (Mon,) studied this question.