What research design does functional analysis use?

Functional analysis primarily utilizes single subject design, which allows for detailed observation of an individual’s behavior in various conditions or situations. This design is specifically suited for examining the relationship between behavior and environmental factors, making it highly effective in applied behavior analysis (ABA).

In functional analysis, different conditions are systematically manipulated to identify the antecedents and consequences that maintain problem behavior. By focusing on one subject at a time, practitioners can individualize interventions based on the specific functions of the behavior being analyzed, such as attention-seeking, escape, or access to tangibles. This approach provides clear, data-driven insights into how environmental variables influence behavior, making it critical for developing effective treatment plans tailored to each individual's needs.