Paper Title
The Effectiveness of Differential Reinforcement of Incompatible Behavior to Reduce Verbal Aggressive Behavior in Children with Intellectual Disabilities

Abstract
Intellectual disability could be classified into three, namely mild intellectual disability, moderate intellectual disability, and severe intellectual disability generally having an IQ of 50 to 70 along with several obstacles. Intellectual disability has a close relationship to social and emotional problem due to emotional dysregulation which causes some behavioral problems such as aggressive behavior. Therefore, one of the appropriate approaches used to intervene this behavior is called reinforcement and extinction-based strategies. However, the most impactful approach is DRI due to differential treatment which reinforces the reduction of negative behavior and strengthens the positive behavior. This study used research design using the initial and intervene condition during DRI treatment. DRI showed an effective result in reducing the verbal aggressive behavior on intellectual disability students with the assistance of token economy. Keywords - Intellectual Disability, Differential Reinforcement of Incompatible Behavior, Behavior Modification, Verbal Agression