A token economy can be useful for any child. But where most children or the typical child, you can correct their behavior with a negative consequence, some children may need a little more motivation. A child that is oppositional defiant maybe is hyperactive or has bad habits that are entrenched because they have been useful for them, then you want to use a token economy so that you can systematically reward them for the behaviors that you want them to gain. They are able to challenge themselves and they are able to overcome that challenge with a reward, so they really gain something. It is the parent partnering with the child and working with them to overcome the bad habit.