Diagnosing personality disorders in children is controversial due to natural developmental shifts in mood and behavior. When maladaptive traits remain pervasive and persistent, however, a personality ...

Narcissistic personality disorder (NPD) is 1 of 10 clinically recognized personality disorders. Though NPD is only one official diagnosis, doctors further classify the condition into 2 types.

There is no unified consensus on how to evaluate and define personality, though there are many approaches. Models include the Five-Factor Model (FFM or Big Five) consisting of openness to experience, ...