Actors Ellen Pompeo, Sandra Oh, Katherine Heigl, Justin Chambers, and T.R. Knight reprised their roles as surgical interns Meredith Grey, Cristina Yang, Izzie Stevens, Alex Karev, and George O'Malley, respectively, continuing their expansive storylines as focal points throughout the season.
From Wikipedia, the free encyclopedia. In psychology, trait theory (also called dispositional theory) is an approach to the study of human personality. Trait theorists are primarily interested in the measurement of traits, which can be defined as habitual patterns of behavior, thought, and emotion.n some theories and systems, traits are something a person either has or does not have, but in many others traits are dimensions such as extraversion vs. introversion, with each person rating somewhere along this spectrum.
Criminology is the study of crime and punishment. The individual trait theory of criminology says that certain personality traits make people more likely to become criminals. Personality traits are influenced by both nature, or biological and genetic factors, and nurture, or environmental factors.he individual trait theory has had an influence on the American criminal justice system. Specifically, our social policy focuses on two approaches to personality traits in the context of criminal justice.