What are the Big Five Aspects?
In a 2007 study, psychologist Colin DeYoung and colleagues showed statistically that each Big Five factor actually splits into two more specific sub-components, or 'aspects,' Conscientiousness into Industriousness and Orderliness, Extraversion into Enthusiasm and Assertiveness, and so on. Sitting between the narrower 'facet' level and the broader 'domain' level, the framework was introduced in a paper titled 'Between Facets and Domains.'
Why split five factors into ten, and when it's useful
Two people can score similarly high on the same broad factor while differing sharply on its two aspects, one person's high Conscientiousness might come mainly from Industriousness, steady effort toward goals, another's mainly from Orderliness, keeping things organized and following rules. That distinction matters for understanding concrete behavior: two equally extraverted people may differ in that one mainly enjoys the company of others, Enthusiasm, while the other mainly enjoys leading and directing a group, Assertiveness. The ten aspects are most useful exactly when a single factor score isn't specific enough to explain a real behavioral difference.
Frequently Asked Questions
Should I look at the Big Five Aspects instead of the Big Five?
The two are complementary rather than competing. The five-factor model is simpler for a big-picture view; the ten aspects are more useful when you want to understand finer differences within the same broad factor.
Is this a completely different model from HEXACO?
No. HEXACO restructures personality into six independent factors by adding a new Honesty-Humility dimension, while the Big Five Aspects framework keeps the original five-factor structure intact and simply looks at each factor in finer detail.