Board Certified Behavior Analyst (BCBA) Practice Test

In behavior analysis, the distinction between an antecedent and a consequence is fundamental to understanding how behaviors are influenced.

An antecedent refers to a stimulus or event that occurs before a behavior. It serves as a trigger that sets the stage for the behavior to occur. For example, a loud noise might prompt a person to startle and jump, with the noise being the antecedent.

On the other hand, a consequence follows the behavior and can either reinforce or punish the behavior, influencing the likelihood of the behavior occurring again in the future. For example, if the person receives praise after they jump in reaction to the loud noise, that praise serves as a positive consequence.

Understanding this temporal relationship—where the antecedent occurs before the behavior and the consequence occurs after—is crucial for analyzing and modifying behavior effectively in various settings such as education, therapy, and behavior modification programs. This clarity helps practitioners design strategies that can maximize desired behaviors and minimize undesired ones.