The chapter opens by questioning the role of personality traits in causing
behaviour, and decides to work with the common assumption that they have an
important role. There is an account of the search for the real units or traits of
personality. Some of the traits and dispositions, selected for their particularly direct
effect on belief, for example, strong need for closure, are briefly described. There is a
comment on the way long-standing occupational roles can sometimes modify
personality
Keywords: Belief, Personality, Raymond Cattell.