Modern theorists have focused much on personality traits. The study of personality across the last 120 years has produced an array of conceptual models that has enriched our understanding of human behavior (Pervin, 2001). These models construe personality in radically different and seemingly inconsistent ways.
In the first decade of the 21st century, however, Dan P. McAdams and Jennifer L. Pals proposed a model for integrating these divergent concepts into a coherent view of personality. Their conceptual framework of the general and unique aspects of human behavior is based on five principles. First, human nature is best explained by evolutionary theory, ...