Academics from all over the World had begun to publish Scientific Research using the HEXACO (a.k.a. Big Six personality model) and not more the Big Five personality model.
The Big Five normative test, had been proven/revealed as an incomplete and incorrect model to assess/measure personality of persons.
Please see also:
Predictability of Personality Traits (from photos) is Dismal !!!
Very easy to copycat eHarmony, but very difficult to innovate: a 100 times better algorithm than eHarmony.