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HEXACOofficial elsewhere
Six dimensions of personality, adding honesty and humility.
What it is
The HEXACO Personality Inventory-Revised, by Kibeom Lee and Michael C. Ashton, measures six major dimensions of personality. The sixth, Honesty-Humility, is what sets it apart from the Big Five.
From Kibeom Lee and Michael C. Ashton.
Why people like it
It is a serious research instrument, and the extra dimension captures something the Big Five leaves out.
Worth keeping in mind
There is no Hopper version yet.
The official one
This link goes to its maker's own site. Hopper Personality is not affiliated with or endorsed by Kibeom Lee and Michael C. Ashton.