... this model to assess over 1,000 personalities in a longitudinal study. They found overall evidence pointing to consistency as opposed to change (Roberts, Caspi, & Moffitt, 2001). Similarly, Roberts and DelVecchio conducted a review on 152 longitudinal studies. They discovered that trait consistency increased throughout one's life span, becoming steadily more consistent with age (Roberts & DelVecchio, 2000). Trait theory has also provided significant evidence ... and change manifest themselves in the longitudinal "Seven-up" study conducted by Michael Apted and Paul Almond (1963, 1970, 19...
- Word Count: 1796
- Approx Pages: 7
- Grade Level: Undergraduate