Research in developmental disabilities
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This study examined the effects of training and feedback on instructor performance of Discrete Trial Teaching (DTT) and support skills. This included an examination of the generalization and maintenance of instructor skills, and the impact of instructor skills on student performance. Six undergraduate research assistants received an 8-h training in DTT and taught a variety of skills and behaviors to four preschool students who had developmental disabilities. ⋯ High levels of instructor proficiency were maintained at follow-up and generalized across students and learning tasks. Student learning and instructional efficiency were superior in the feedback and follow-up conditions compared to baseline. The results highlight the need for training programs that allow school personnel to correctly use DTT to effectively facilitate learning and development in students who have developmental disabilities.