Article InformationAuthors: Thiemann-Bourque, K.; Brady, N.; McGuff, S.; Stump, K.; Naylor, A.Year: 2016Publication: Journal of speech, language, and hearing research : JSLHRVolume: 59Issue: 5Pages: 1133-1145DOI: 10.1044/2016_jslhr-l-15-0313 Final Quality and Data Extraction DecisionsAge: 36-71.9 months (3-5.9 years)Domains: CommunicationSocialIntervention: Augmentative and alternative communicationPicture Exchange Communication System (PECS®)Peer-based instruction and interventionPeer mediated instruction and intervention