Article InformationAuthors: Wong, C. S.Year: 2013Publication: Autism : the international journal of research and practiceVolume: 17Issue: 3Pages: 340-57DOI: 10.1177/1362361312474723 Final Quality and Data Extraction DecisionsAge: 36-71.9 months (3-5.9 years)6-11.9 yearsDomains: Joint attentionPlayIntervention: Naturalistic interventionJoint Attention, Symbolic Play, Engagement, and Regulation (JASPER)