Article InformationAuthors: Ali, E., MacFarland, S. Z., & Umbreit, J.Year: 2011Publication: Education and Training in Autism and Developmental DisabilitiesVolume: 46Issue: 3Pages: 425 Final Quality and Data Extraction DecisionsAge: 6-11.9 years12-14.9 yearsDomains: CommunicationIntervention: Augmentative and alternative communicationPicture Exchange Communication System (PECS®)