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.
A trait is a physical characteristic that an organism passes on to  its offspring. Trait is the same as characteristics, which are part  of a person's personality. An exampl â¦ e of a trait is kindness or  sincerity. 4 people found this useful. trait is an element of personality that is relatively stable throughout the lifespan and across contexts. In other words, a trait is a consistent element of self that makes â¦ that person who he is.