Specific parent-training approaches yielded gains in short-term language function and some challenging behaviors .
Data suggest that subgroups of children displayed more prominent gains across studies , but participant characteristics associated with greater gains are not well understood .
CONTEXT : Early intensive behavioral and developmental interventions for young children with autism spectrum disorders ( ASDs ) may enhance developmental outcomes .
OBJECTIVE : To systematic ally review evidence regarding such interventions for children aged 12 and younger with ASDs .
Outcome for Children with Autism who Began Intensive Behavioral Treatment Between Ages 4 and 7
This study extends findings on the effects of intensive applied behavior analytic treatment for children with autism who began treatment at a mean age of 5.5 years . The  behavioral treatment group ( n = 13 , 8 boys ) was compared to an  eclectic treatment group ( n = 12 , 11 boys ) . Assignment to groups was made independently based on the availability of qualified supervisors . Both behavioral and eclectic treatment took place in public kindergartens and elementary schools for typically developing children . At a mean age of 8 years , 2 months , the behavioral treatment group showed larger increases in IQ and adaptive functioning than did the eclectic group . The behavioral treatment group also displayed fewer aberrant behaviors and social problems at follow-up . Results suggest that behavioral treatment was effective for children with autism in the study
Specific parent-training approaches yielded gains in short-term language function and some challenging behaviors .
Data suggest that subgroups of children displayed more prominent gains across studies , but participant characteristics associated with greater gains are not well understood .
CONTEXT : Early intensive behavioral and developmental interventions for young children with autism spectrum disorders ( ASDs ) may enhance developmental outcomes .
OBJECTIVE : To systematic ally review evidence regarding such interventions for children aged 12 and younger with ASDs .