Positive reinforcement and informative feedback are used. Physical adversives must not be used. Each program must have a curriculum recommended by the expert detailing the skills that will be taught to the child. The curriculum should reflect the child's abilities and needs. The curriculum should be based on normal child development, as interpreted by the expert.
ABA therapy is currently the best practice for all individuals with autism.
However, it is most effective for children when commenced before age 5. As a child progresses, therapy is expected to be delivered in a more natural way. ABA therapy is provided by a team working with the child, and supporting other team members. The team should meet at least every second week to receive training and feedback, and to discuss progress, technique and future programming. The caregiver is whoever cares for the child outside of therapy time.