The rates and durations of stereotypic behaviors in four adolescents with severe mental retardation were measured during two daily vocational training sessions and during contiguous periods of leisure in special education classrooms. The major differences in stereotypy between leisure and vocational training were differences in episode length.…

The behavior of four adolescents with severe or profound mental retardation was evaluated in the presence of four sets of materials during periods of unstructured leisure activity. Results indicate that the participants allocated their time principally to stereotypic behavior with materials when the number of sets of materials available was…

Perhaps the most disturbing aspect of television's impact lies in its creation of a generation of viewers incapable of making critical judgments about the media, their world, or themselves. (JD)