Analysis of psychological traitsIn the late 1970s, Hans Eysenck modified his two-dimensional model of personality to allow for the appearance of a third trait known as psychoticism. This trait, which is now part of Eysenck's Psychoticism-Extraversion-Neuroticism model of psychology, is a pattern located in the personality that Eysenck found and defined as the aggressive part of the personality. It was from psychotism that Eysenck believed all hostility in man came from. From Eysenck's studies on the development of psychosis, he began to develop a theory that there was a correlation between high levels of this particular trait and the development of mental problems such as schizophrenia. He also believed that psychoticism was rooted in genetic biology. He studied whether directly related individuals shared high levels of psychoticism and, if this formed a true correlation, then he could find the element of the genetic structure of human beings that harbored psychoticism. Over time, Eysenck began to see similarities with other factor models of personality such as the three-factor model developed by Auke Tellegen. This was seen by Eysenck in that psychoticism can be broken down into smaller traits such as impulsivity through the use of factor analysis. From there, impulsivity can be dismantled even further by breaking it into pieces like the rick-taker for example. It was from this point that Eysenck's critics discovered that they thought the stroke itself was too broad to be defined as a single stroke. Most critics of Eysenck's theory of psychoticism as a facet of personality agree that the large number of correlations with other, better-defined models means that psychoticism requires more factor analyzes to adequately describe personality.... middle of article..... dimensions .rsonality. An ideal society provides everyone with the opportunity to make the most of their characteristics and abilities. However, some people will adapt better than others to the social environment. The psychotic person, for example, characterized by hostile and aggressive behaviors, may become emotionally disturbed, or exhibit criminal tendencies, or channel their aggressive traits into a socially acceptable endeavor such as coaching college football. (Schultz & Schultz, 2013, p. 227) From this writing of Eysenck's ideas by Schultz and Schultz, the conclusion that every psychoticism researcher should reach is the same: that the world needs all three dimensions of personality together to function and act. as checks and balances for each other. When all three dimensions are in balance, we form the basis of all human interaction..