In looking at the DSM, Morey and Ochoa (1989) demonstrated that one area significant reliability concerns is in diagnosing "personality" disorders.
Personality disorders are a group of mental sicknesses. They include long term patterns of contemplations and practices that are undesirable and rigid. The practices cause significant issues with connections and work. Individuals with identity issue experience difficulty managing ordinary anxieties and issues. They regularly have stormy associations with other individuals.