
Functional assessment is a key component of Applied Behavior Analysis (ABA), helping professionals understand the reasons behind specific behaviors. By identifying the “function” or purpose a behavior serves—such as seeking attention, avoiding tasks, or gaining access to something—practitioners can design targeted interventions that address the root cause. Rather than just managing surface behaviors, functional assessment allows for more personalized and effective treatment strategies. This guide delves into the essential concepts and techniques used to uncover the “why” behind behavior.