How is incompatible behavior reinforced according to DRI?

Reinforcing incompatible behavior according to Differential Reinforcement of Incompatible behavior (DRI) involves strengthening a behavior that cannot occur at the same time as the unwanted behavior. This method is effective because it focuses on teaching an alternative behavior that serves the same function as the undesired action, but does not allow both behaviors to exist together. For example, if a child tends to shout in class, you would reinforce a quiet hand-raising signal instead. When the child raises their hand quietly, they receive reinforcement, such as praise or a token, which encourages this appropriate behavior while simultaneously reducing the likelihood of shouting, as the two cannot happen at the same time. This approach is foundational in behavior modification as it promotes positive behaviors and replaces negative ones without directly addressing the problematic behavior itself.