Robert Roger McCrae (born April 28, 1949)[1] is a personality psychologist.
Along with Paul Costa, he is a co-author of the Revised NEO Personality Inventory.
It states “Personality traits are construed as basic tendencies that are rooted in biology and that interact with external influences, including culture, in shaping the skills, habits, tastes, and values of the individual”.
[citation needed] As he studied personality trends and stability in cultures, McCrae found that countries high in neuroticism and low in agreeableness form dimensions of uncertainty avoidance.
And, high levels of neuroticism and openness to experience indicate dimensions of masculinity within the culture.