📌Free webinar on "Reinforcement Effects" Reinforcement is a highly recommended strategy in applied behavior analysis. However, it is important to consider the possible unwanted effects of reinforcement. Reinforcement in one setting could lead to a decrease in the target behavior in another setting (behavioral contrast).Reinforcement of a specific behavior could lead to an increase in undesirable behaviors in that same functional response class. Similarly, reinforcement of a specific behavior could lead to a decrease in desirable behaviors in the same functional response class.