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Shepley, Sally B.; Spriggs, Amy D.; Samudre, Mark D.; Sartini, Emily C. – Journal of Special Education, 2019
This study evaluated the effects of progressive time delay (PTD) to teach four elementary students with intellectual disability on how to self-instruct using a video activity schedule. A single-case multiple probe across participants design with a multiple probe across environments design for each participant was used to assess the generalization…
Descriptors: Elementary School Students, Students with Disabilities, Video Technology, Intellectual Disability