A 49-year long study found that Reflective Network Therapy (RNT) significantly improved IQ and social skills in children with autism. The study of over 1,700 preschoolers, including 680 with autism, found that autistic children gained an average of 24 IQ points with RNT. RNT involves small social networks in classrooms with therapists, teachers, and peers reacting as a team to behaviors.