Research in developmental disabilities
-
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.
-
We developed an Internet survey to identify treatments used by parents of children with autism. The survey listed 111 treatments and was distributed via colleagues and through chapters of the Autism Society of America and Autism Organizations Worldwide. A total of 552 parents submitted usable returns during the 3-month survey period. ⋯ Speech therapy was the most commonly reported intervention, followed by visual schedules, sensory integration, and applied behavior analysis. In addition, 52% of parents were currently using at least one medication to treat their child, 27% were implementing special diets, and 43% were using vitamin supplements. Because parents were using a large number of treatments, many of which lack empirical support, future research should focus on understanding the decision-making processes that underlie treatment selection by parents of children with autism.
-
This research was conducted to replicate and expanded the work of Bodfish et al. [Bodfish, J. W., Harper, V. N., Deacon, J. ⋯ Subjects (N=28) with cognitive and communication deficits were assessed at multiple baselines, during and after the procedure. The results indicated that scores on the PADS were significantly higher during the scaling procedure than during all other observations quantified by the PADS. We conclude that the PADS is a functionally sensitive measure that may lack specificity, but that may also represent the state of the psychometric art of assessing pain in patients who have MR.
-
The purpose of the present study was to investigate a new procedure for establishing accurate discriminations of delayed acts of saying, of doing and discriminations of say-do correspondence and non-correspondence with three developmentally delayed subjects. A corrective feedback procedure for incorrect discrimination responses, that involved multiple-exemplars, was initially employed, but failed to establish most of the target discriminations for all three subjects. A near-errorless training intervention was subsequently employed that also involved multiple-exemplars. ⋯ All three subjects demonstrated highly accurate reports of delayed saying, doing and say-do correspondence or non-correspondence discriminations in the absence of prompts and with novel stimuli. The results are discussed in terms of generalized classes of behavior. The implications of these findings for the use of the errorless learning paradigm as a means of establishing complex behavior are also discussed.
-
Two mentally retarded subjects with language deficits participated. A say-do-report correspondence training was implemented to break the functions of present conditions given by a long history of contingencies maintaining chronic inadequate patterns of behavior. The say-do-report procedure was implemented following a multiple baseline design across two behaviors in one subject and in an AB design for the other. ⋯ Promising or saying what a subject would do was then implemented and followed by the differential reinforcement of say-do correspondence reports. All behaviors changed and were maintained at an appropriate level, even after eliminating the components involved in the say-do-report procedure, that is, the reports, the extra consequences, and even the promise. Results are discussed in the context of verbal behavior altering the function of present conditions in subjects with limited verbal repertory, as well as in the context of new applications to make a difference in chronic behaviors.