Applied behavior analysis (ABA) therapy is a treatment approach that uses positive reinforcement to teach new behaviors and skills to children with autism. ABA therapy is based on the principles of behaviorism, which suggest that behaviors can be shaped and modified by manipulating the environment.

ABA therapy typically involves breaking down complex behaviors into smaller, more manageable steps, and using positive reinforcement to reward each step of progress. ABA therapists may use a variety of techniques, including verbal praise, tokens, or other rewards to reinforce positive behaviors. While ABA therapy has been shown to be effective in improving a range of skills in children with autism, it is not a cure for the disorder. ABA therapy should be used as part of a comprehensive treatment plan that includes other interventions, such as speech and occupational therapy.