the FFM specifies six homogeneous facet constructs within each of the five broad factors, for a total of 30 personality constructs (Costa & McCrae, 1992). Figure 1 is a depiction of a common hierarchical personality model. It includes Digman's (1997) overarching two factors, the five factors as reflected in the NEO PI-R (Costa & McCrae, 1992), and the 30 specific, homogeneous NEO PI-R scales (e.g., Self-Consciousness, Excitement Seeking) at the lowest level.
