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Direct linkBeck, Ann R.; Stoner, Julia B.; Bock, Stacey J.; Parton, Tom – Education and Training in Developmental Disabilities, 2008
This study compares use of the Picture Exchange Communication System (PECS) and a Voice Output Communication Aide (VOCA) with four preschool children who were either non-speaking or limited in their ability to speak and did not use an AAC system to communicate functionally. An alternating treatment single subject design was used to measure…
Descriptors: Augmentative and Alternative Communication, Preschool Children, Developmental Disabilities, Autism
