Article InformationAuthors: Kohler, F. W., Strain, P. S., Maretsky, S., & DeCesare, L. Year: 1990Publication: Journal of Early InterventionVolume: 14Issue: 4Pages: 327-341DOI: 10.1177/105381519001400404 Final Quality and Data Extraction DecisionsAge: 36-71.9 months (3-5.9 years)Domains: SocialIntervention: Reinforcement