Which of the following describes a primary focus of applied behavior analysis (ABA)?

The primary focus of applied behavior analysis (ABA) is on using structured reinforcement to modify behaviors. ABA is a systematic approach that employs principles of behaviorism to identify and change socially significant behaviors. It emphasizes the importance of reinforcement, whether positive or negative, to encourage desired behavior changes. By systematically applying these reinforcement strategies, practitioners can shape behaviors, improve skills, and reduce undesirable behaviors in various contexts.

This focus on modifying behavior through reinforcement makes ABA particularly effective in working with individuals with developmental disabilities, as it provides measurable and observable outcomes. By analyzing behavior in specific situations and applying interventions tailored to the individual, ABA helps facilitate lasting change and skill development.

In contrast, the other options touch on valuable practices but do not encapsulate the core principles of ABA. For instance, while enhancing physical skills through sports, encouraging emotional expression through art, and fostering autonomous decision-making are all beneficial activities, they do not specifically utilize the structured behavioral approaches and reinforcement strategies that are foundational to ABA's methodology.