Applied behavior analysis

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Applied behavior analysis (ABA), also called behavioral engineering,^[1][2] is a scientific discipline that applies the principles of learning based upon respondent and operant conditioning to change behavior of social significance. ABA is the applied form of behavior analysis; the other two are radical behaviorism (or the philosophy of the science) and the experimental analysis of behavior (or basic experimental research).^[3]

The term applied behavior analysis has replaced behavior modification because the latter approach suggested changing behavior without clarifying the relevant behavior-environment interactions. In contrast, ABA changes behavior by first assessing the functional relationship between a targeted behavior and the environment, a process known as a functional behavior assessment. Further, the approach seeks to develop socially acceptable alternatives for maladaptive behaviors, often through administering differential reinforcement contingencies.

Although service delivery providers commonly implement empirically validated interventions for individuals with autism, ABA has been utilized in a range of other areas, including applied animal behavior, organizational behavior management, substance abuse, behavior management in classrooms, acceptance and commitment therapy, athletic exercise, among others.^[4][5][6]

There is substantial opposition from autism rights movement to its application due to a perception that it emphasizes normalization instead of acceptance and its potential for causing harms.^[7][8]