Personality Trait Models: Big Five and HEXACO

The Big Five Personality Factors Development and Stability

  • Continuum of Factors: Individuals typically lie somewhere midway along the continuum for each personality factor, rather than at the extreme polar ends.

  • Relative Stability Over Lifespan: The Big Five factors are generally stable throughout an individual's life, though some slight increases or decreases may occur.

    • Conscientiousness: Shows an increase from young adulthood into middle age, often associated with a growing ability to manage personal relationships and careers (Donnellan & Lucas, 2008).

    • Agreeableness: Also increases with age, typically reaching its peak between 5050 and 7070 years (Terracciano, McCrae, Brant, & Costa, 2005).

    • Neuroticism and Extroversion: Both tend to experience a slight decline with increasing age (Donnellan & Lucas; Terracciano et al.).

  • Cross-Cultural and Biological Basis: The Big Five factors have been observed across various ethnicities, cultures, and age groups, suggesting they may have significant biological and genetic underpinnings (Jang, Livesley, & Vernon, 1996; Jang et al., 2006; McCrae & Costa, 1997; Schmitt et al., 2007).

The HEXACO Model of Personality Traits

  • Introduction: The HEXACO model is another prominent model used to describe personality traits.

  • Acronym: HEXACO stands for six broad traits:

    1. Honesty-Humility

    2. Emotionality

    3. Extraversion

    4. Agreeableness

    5. Conscientiousness

    6. Openness to Experience (Anglim & O'Connor, 2018).