five It has been noted that even though early lexical studies in the English language indicated five large groups of personality traits, more recent, and more comprehensive, cross-language studies have provided evidence for six large groups rather than five, with the sixth factor being Honesty-Humility. These six groups form the basis of the HEXACO model of personality structure. Based on these findings it has been suggested that the Big Five system should be replaced by HEXACO, or revised to better align with lexical evidence. See also Core self-evaluations Dark triad DISC assessment Facet Genomics of personality traits Goal orientation HEXACO model of personality structure Moral foundations theory Myers–Briggs Type Indicator Personality psychology Szondi test Trait theory References External links International Personality Item Pool, public domain list of items keyed to the big five personality traits. Selection from the "Handbook of personality: Theory and research" for researchers U.S. Regions Exhibit Distinct Personalities, Research Reveals Personality traits 1961 introductions