Summaryof:Kasari,C.,Rotheram-Fuller,E.,Locke,J.G the study in cluded 30 different schoolsin the United States.Intervention: Children allocated to the CHILD interven-tion met with a trained therapist during lunch for 20 min-utes, twice per week, for six weeks. The therapist useddirect instruction and role-playing to target skill develop-ment. In the PEER intervention, three typically developingpeers from the target child’s classroom met with a therapistfor 20 minutes, twice per week, for six weeks. Throughdirect instruction, modelling and role-playing, peers weretaught how to: encourage positive social interactions, initi-ate play, and facilitate games for children who had diffi-culty making friends.Outcome measures: Primary measures. The Social Network(SN) Survey was administered to children in classrooms toexamine social network salience before, after and three -months following the intervention. The Playground Obser-vation of Peer Engagement was scored by blinded asses-sors: before, after and at the three-month follow-up.Secondary measures. The Teacher Perception of Social Skillsand the SN Survey (measuring: received friendship nomi-nations, nominations of friendship, rejections and recipro-cal friendship nominations).Results: There was a significant group effect on chil-dren’s social network salience (P < 0.001). The PEERintervention had a significant, large effect (P < 0.001,d = 0.76), while the CHILD intervention had a non-sig-nificant, small effect (P = 0.06, d = 0.36). Children whoreceived the PEER intervention also had an improvednumber of received friendship nominations ( P < 0.001)and teacher report of social skills in the classroom(P < 0.001); with gains persisting at follow-up. By thethree-month follow-up, playground isolation had signifi-cantly decreased (P<0.001) and joint engagement hadsignificantly increased (P = 0.01). There were no signifi-cant between group differences in secondary outcomesof: friendship nominations by the child, rejections orreciprocal friendships.Author’s conclusions: Peer-mediated treatments weresuperior to non-peer-mediated treatments on several out-comes. The school setting offers unique opportunities toteach typically developing peers to become sensitive andhelpful towards peers with different learning and develop-mental needs.Contact details of the original author : kasari@gseis.ucla.eduSarah Wilkes-GillanCAPs Advisory Board MemberFaculty of Health Sciences, the University of Sydney,Sydney, New South Wales, AustraliaEmail: sarah.wilkes-gillan@sydney.edu.au