Notably, by Biff’s presenting symptoms, he is displaying signs of conduct disorder. Based on his age and preforming conduct behavior before the age of 10, Biff’s specified disorder is Adolescent-onset type. This disorder consists of repetitive acts of violating the rights of others, and major rules of age-appropriate social norms, that have been present over the past 12 months (American Psychiatric Association, 2013). Noted in Biff’s history, they stated that he has shown cruelty towards animals, bulling other peers, and pressuring a female classmate to kiss him after school. It shares how Biff has been in multiple altercations that have been physical towards other peers resulting in medical care due to bruises and wounds. In criteria a,