Abstract
A newly developed audio-visual staff training package on the legal and historical aspects of developmental disabilities was assessed for its educational effectiveness. Separate evaluations were made of the component parts of the package. From a residential institution serving the developmentally disabled, 100 direct care staff were selected randomly and assigned to five groups. These groups were presented with either the audio-visual component, the workbook, or the combined audiovisual and workbook components of the package. Two groups were pretested and all five groups received a posttest and a three week follow-up test The results indicated significant learning effects which were maintained through the follow-up period. There were no differences between the three presentation modes in educational effectiveness but the slide-tape only presentation was more efficient and was preferred by the participants. Based on the results of the study, further development of audio-visual staff training packages is encouraged.
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