Article InformationAuthors: Jahr, E.Year: 2001Publication: Research in Developmental DisabilitiesVolume: 22Issue: 5Pages: 407-423DOI: 10.1016/S0891-4222(01)00081-6 Final Quality and Data Extraction DecisionsAge: 36-71.9 months (3-5.9 years)6-11.9 yearsDomains: CommunicationSocialIntervention: Discrete trial training