Your roommate is very upset because her folks have called and informed her that her brother has been diagnosed with a personality disorder. when you ask her what kind, she says, "i don't know. they just said it was in the odd/eccentric cluster. what kind does that mean?" although you don't know for sure what her brother's diagnosis is, you should tell her that _____ personality disorder is the most prevalent of the disorders in that particular cluster.

An individual who is diagnosed with the Odd/Ecentric Cluster, is most probably suffering from the Paranoid Personality Disorder. He may also be suffering from Schizoid Personality disorder and Schizotypal Personality Disorder.

Paranoid Personality disorder is actually a mental disorder, which is characterized by Paranoia. In this state, a person hardly trusts the other person, doubts the loyalty of others, gets hypersensitive over criticism, gets angry easily, restrict himself from social activities, etc.

Now in this question, you roommate is upset because his brother is diagnosed with Odd/Ecentric Cluster, you can tell her the detail that such type of diagnosis is basically the Paranoid personality disorder which can be treated in some time.