Oppositional defiant disorder refers to difficulty in controlling emotions and behaviors. It may involve persistent displays of irrationally rebellious behavior and anger at authority figures.

Defiant behavior is often linked to ADHD ... What is the most effective discipline for a child with ADHD? Children with ADHD, like others, benefit from fair and consistent discipline.

Oppositionall Defiant Disorder involves frequent episodes of disruptive behavior and persistent hostility and defiance of authority figures—episodes typically made worse by harsh punishment ...