Article InformationAuthors: Gibson, J. L., Pennington, R. C., Stenhoff, D. M., & Hopper, J. S. Year: 2010Publication: Topics in Early Childhood Special EducationVolume: 29Issue: 4Pages: 214-225DOI: 10.1177/0271121409352873 Final Quality and Data Extraction DecisionsAge: 36-71.9 months (3-5.9 years)Domains: Challenging/interfering behaviorCommunicationSocialIntervention: Functional communication training