Article InformationAuthors: Krantz, P. J., & McClannahan, L. E.Year: 1998Publication: Journal of Applied Behavior AnalysisVolume: 31Issue: 2Pages: 191-202DOI: 10.1901/jaba.1998.31-191 Final Quality and Data Extraction DecisionsAge: 36-71.9 months (3-5.9 years)Domains: CommunicationSocialIntervention: Visual supports