Article InformationAuthors: Matson, J. L., Sevin, J. A., Fridley, D., & Love, S. R.Year: 1990Publication: Journal of Applied Behavior AnalysisVolume: 23Issue: 2Pages: 227-233DOI: 10.1901/jaba.1990.23-227 Final Quality and Data Extraction DecisionsAge: 6-11.9 yearsDomains: CommunicationSocialIntervention: Time delay