Applied Behaviour Analysis (ABA) is a science devoted to the understanding and improvement of human behaviour. ABA focuses on objectively defined behaviours of social significance and interventions are centred on improving these behaviours.
ABA is an approach to autism with the most comprehensive and extensive research supporting the efficacy of an early intervention. Early research (Lovass et al; 1987) investigated the benefits of implementing the principles of ABA. They found profound differences between children being taught using ABA methodology in IQ and the degree of inclusion in mainstream educational settings compared with two control groups.