Question

Emily is a menace to all those around her. she has rapid mood swings which are punctuated by uncontrollable bouts of aggression. she has cuts on her arms and legs owing to self-inflicted injuries. this has forced her parents to limit her interaction with others. they find it hard to control her themselves. according to the "4 ds" of determining whether something is a mental disorder, what does this reveal about emily's behavior?

Answer 1

I believe the answer is: Her behavior is dysfunctional.

In 4Ds of mental disorder, dysfunctional behaviors refers to the behaviors that would the patient's abilty to properly function in his/her daily life.
This could include behaviors such as deviance toward standard norm  or various self destructive method that the patient would display.