10 Things Your Personality Score Actually Predicts

Personality tests get a bad reputation because the internet is full of bad ones. But the Big Five model is not a "which bread are you?" quiz. It is backed by decades of longitudinal research, and the patterns it measures predict real things about real lives.

Here are ten outcomes that Big Five scores reliably predict, according to published research. These are not horoscope-level generalizations. They are statistically significant findings replicated across multiple studies, populations, and decades.

1. Job Performance

Conscientiousness is the single strongest personality predictor of job performance across virtually all occupations. A meta-analysis of 117 studies found that Conscientiousness correlated with performance ratings, training proficiency, and personnel data across every job category examined (Barrick & Mount, 1991).

The relationship makes intuitive sense: people who are organized, dependable, and goal-directed tend to do their work well. But the strength and consistency of this finding surprised researchers. It holds for managers, salespeople, skilled laborers, and professionals alike.

Extraversion also predicts performance, but only in jobs that involve significant social interaction, like sales and management roles.

2. Academic Achievement

Conscientiousness predicts academic performance almost as well as it predicts job performance. A meta-analysis of 80,000+ students found Conscientiousness to be the strongest Big Five predictor of GPA, even after controlling for intelligence (Poropat, 2009).

Openness to Experience also contributes, particularly in subjects that reward curiosity and independent thinking. But the sheer grinding consistency that Conscientiousness provides, turning up, doing the reading, meeting deadlines, appears to matter more than raw intellectual curiosity for grades.

3. Relationship Satisfaction

Low Neuroticism and high Agreeableness in both partners predict relationship satisfaction across studies (Malouff et al., 2010). This finding holds for dating relationships, marriages, and long-term partnerships.

The mechanism isn't mysterious. People who experience less negative emotion (low Neuroticism) have fewer emotional storms for their partner to weather. People who are warm, trusting, and cooperative (high Agreeableness) create less friction in daily interactions.

Interestingly, your partner's personality predicts your relationship satisfaction about as strongly as your own does. You can't control your own Neuroticism in isolation because your partner's emotional patterns shape your daily experience just as much.

4. Income and Career Advancement

Higher Conscientiousness, higher Extraversion, and lower Agreeableness all independently predict higher income (Judge, Higgins, Thoresen, & Barrick, 1999).

The Conscientiousness finding is straightforward: disciplined people tend to get promoted. The Extraversion finding reflects the advantage of assertiveness and social confidence in workplace negotiations and visibility.

The Agreeableness finding is more uncomfortable. People who are less concerned with being liked, who negotiate harder, and who prioritize their own interests tend to earn more. This doesn't mean agreeable people are failing. It means the labor market rewards assertiveness in ways that map onto the Agreeableness scale.

5. Physical Health and Longevity

Conscientiousness predicts longevity. A landmark study followed 1,528 gifted children for over 70 years and found that childhood Conscientiousness was the best personality predictor of how long they lived (Friedman et al., 1993).

The pathways are multiple: conscientious people are more likely to exercise, less likely to smoke, more likely to follow medical advice, more likely to wear seatbelts, and more likely to maintain stable social relationships, all of which contribute to health outcomes.

High Neuroticism, on the other hand, predicts higher rates of cardiovascular disease, inflammation markers, and chronic health conditions (Lahey, 2009).

6. Mental Health

Neuroticism is the single strongest personality predictor of depression, anxiety disorders, substance abuse, and general psychological distress (Kotov et al., 2010). This is one of the most robust findings in all of personality psychology.

The relationship is not destiny. Neuroticism measures a disposition toward experiencing negative emotions, not a guaranteed outcome. But the predictive power is strong enough that some researchers have argued Neuroticism should be treated as a public health variable, similar to blood pressure or cholesterol (Lahey, 2009).

Low Extraversion (introversion) also modestly predicts depression risk, likely through reduced social engagement and reward sensitivity.

7. Political Beliefs

Openness to Experience predicts liberal political orientation. Conscientiousness predicts conservative orientation. These findings have been replicated across dozens of studies in multiple countries (Sibley & Duckitt, 2008).

The relationship works at the facet level too. The specific facets of Openness most strongly linked to liberal views are Openness to Values (willingness to re-examine social, political, and religious values) and Openness to Actions (preference for novelty over routine).

This doesn't mean your personality determines your politics. Many other factors matter, including education, economic circumstances, cultural context, and specific life experiences. But the personality-politics link is consistent enough that researchers can predict party affiliation from Big Five scores at rates significantly better than chance.

8. Creativity

Openness to Experience is the strongest personality predictor of creative achievement across domains, from art to science to business innovation (Feist, 1998).

The facets that matter most are Openness to Ideas (intellectual curiosity), Openness to Aesthetics (sensitivity to beauty and art), and Openness to Fantasy (vivid imagination). People who score high on these facets generate more ideas, make more remote associations, and are more willing to explore unconventional approaches.

But Openness alone isn't sufficient. Creative achievement also requires Conscientiousness (the discipline to actually finish projects) and sometimes low Agreeableness (the willingness to challenge established thinking).

9. Divorce Risk

Neuroticism and low Agreeableness both predict higher divorce risk (Roberts et al., 2007). Low Conscientiousness also contributes, possibly because it correlates with impulsive decision-making and difficulty maintaining commitments.

One longitudinal study found that personality traits measured in early adulthood predicted divorce rates measured 20 years later, suggesting these patterns are deeply embedded rather than situational (Kelly & Conley, 1987).

The finding is not that certain personality types "can't" maintain relationships. It is that certain trait patterns create friction that accumulates over time unless both partners develop strategies to manage it.

10. Leadership Effectiveness

Extraversion, Openness, and Conscientiousness all predict leadership emergence and effectiveness (Judge, Bono, Ilies, & Gerhardt, 2002). Neuroticism predicts lower leadership effectiveness.

The strongest predictor is Extraversion, which makes sense: extraverted people are more likely to seek out leadership roles, speak up in groups, and project confidence. But Conscientiousness matters for sustained leadership effectiveness. Getting the role requires Extraversion; keeping it and doing it well requires follow-through.

Agreeableness has a complicated relationship with leadership. Highly agreeable leaders are rated as more likeable but less effective at making tough decisions. The most effective leaders tend to score moderate on Agreeableness, high enough to maintain team cohesion but not so high that they avoid necessary conflict.

What This Means for You

These findings are population-level patterns, not individual verdicts. Knowing that Conscientiousness predicts job performance doesn't tell you whether you, specifically, will succeed in your specific job. Personality is one variable among many.

But patterns this consistent, replicated across decades and cultures, are worth paying attention to. Your Big Five scores don't determine your future, but they do describe the currents you're swimming with or against.

Want to see where you stand? Take the free Big Five personality assessment and get your scores across all five dimensions and 30 facets. The results might confirm what you already suspected, or they might surface patterns you haven't noticed yet.

References

• Barrick, M. R., & Mount, M. K. (1991). The Big Five personality dimensions and job performance. Personnel Psychology, 44(1), 1-26.
• Feist, G. J. (1998). A meta-analysis of personality in scientific and artistic creativity. Personality and Social Psychology Review, 2(4), 290-309.
• Friedman, H. S., et al. (1993). Does childhood personality predict longevity? Journal of Personality and Social Psychology, 65(1), 176-185.
• Judge, T. A., Bono, J. E., Ilies, R., & Gerhardt, M. W. (2002). Personality and leadership: A qualitative and quantitative review. Journal of Applied Psychology, 87(4), 765-780.
• Judge, T. A., Higgins, C. A., Thoresen, C. J., & Barrick, M. K. (1999). The Big Five personality traits and career success. Personnel Psychology, 52(3), 621-652.
• Kelly, E. L., & Conley, J. J. (1987). Personality and compatibility: A prospective analysis of marital stability and marital satisfaction. Journal of Personality and Social Psychology, 52(1), 27-40.
• Kotov, R., et al. (2010). Linking "big" personality traits to anxiety, depressive, and substance use disorders. Psychological Bulletin, 136(5), 768-821.
• Lahey, B. B. (2009). Public health significance of Neuroticism. American Psychologist, 64(4), 241-256.
• Malouff, J. M., et al. (2010). The five-factor model of personality and relationship satisfaction of intimate partners. Journal of Research in Personality, 44(1), 124-127.
• Poropat, A. E. (2009). A meta-analysis of the five-factor model of personality and academic performance. Psychological Bulletin, 135(2), 322-338.
• Roberts, B. W., et al. (2007). The power of personality. Perspectives on Psychological Science, 2(4), 313-345.
• Sibley, C. G., & Duckitt, J. (2008). Personality and prejudice. European Journal of Personality, 22(3), 248-264.