, 2007). Substance abuse is a serious problem and is linked most often to individuals with personality disorders, which are named in the next section.

Personality Disorders. Personality disorders, as defined in Kring et al., are a "heterogeneous group of disorders defined by long-standing, pervasive and inflexible patterns of behavior and inner experience that deviate from the expectations of a person's culture (Kring et al., 2007, 387). The DSM-IV-TR classifies 10 personality disorders, which it groups into 3 major clusters (Kring et al., 2007, 391). Cluster a is the odd / eccentric cluster; cluster B is the Dramatic / Erratic Cluster; and cluster C is the Anxious / Fearful Cluster (Kring et al., 2007).

Cluster a or the odd / eccentric cluster includes the paranoid personality disorder, the schizoid personality disorder and the schizotypal personality disorder (Kring et al., 2007). Individuals with paranoid personality disorder are highly suspicious of others...
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