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.
Not only do trait theorists focus on a personâs characteristics but also the Individual Trait Theory is often closely related with a personâs intelligence quotient. This part of trait theory focuses on the relationship between learning, intelligence, personality and how they determine criminality (Siegel, 2010).s with all theories, there are holes in the Individual Trait Theory. While it does explain biological and social factors contributing to oneâs personality that can predispose a person to crime, there are many things it does not take into account, like situational decisions and the change in a person over time.