Personality psychology is a branch of psychology that studies personality and individual differences. Its areas of focus include: Constructing a coherent picture of the individual and his or her major psychological processes Investigating individual differences - how people are unique Investigating human nature - how people are alike "Personality" can be defined as a dynamic and organized set of characteristics possessed by a person that uniquely influences his or her cognitions, motivations, and behaviors in various situations. The word "personality" originates from the Latin persona, which means mask...