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The Effects of Variable Intertrial Interval Duration on Learning in Children with Autism
Wang, Yan
Wang, Yan
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Abstract
The prevalence of autism spectrum disorder is 1 in 44 children, and applied behavior analysis (ABA) is the only intervention that has been shown to produce comprehensive and lasting results in individuals with ASD. Discrete trial training (DTT) is the most well-known and extensively studied procedure for teaching new skills and educational goals for individuals with ASD. One component of DTT, the manipulation of intertrial interval (ITI) durations, might provide a meaningful improvement in skill acquisition. The purpose of this study was to examine the effects of varying durations of ITI during DTT on skill acquisition and challenging behavior of children with ASD. The results showed that the shorter ITI condition produced the most effective acquisition of learning targets and two participants. The results showed that in both conditions, with virtually no or one occurrence of problem behavior, the shorter ITI condition produced the most effective acquisition of learning targets for two participants. Results were discussed regarding variables impacting the education and training of individuals with ASD and other intellectual and developmental disabilities.
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Date
2022-12-31
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University of Kansas
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Keywords
Special education, Behavioral sciences, autism, discrete trial training, generalization, intertrial interval, maintenance