Evidence of similarityThe Big Five travel well
Observer ratings from about 50 cultures largely reproduced the Big Five structure: openness, conscientiousness, extraversion, agreeableness and neuroticism (McCrae & Terracciano, 2005). The HEXACO model adds a sixth factor, Honesty-Humility, found in lexical studies in many languages (Ashton & Lee, 2007).
Evidence of differenceInterpersonal Relatedness
Fanny Cheung and colleagues built the Chinese Personality Assessment Inventory from Chinese concepts and found an Interpersonal Relatedness factor (harmony, face, relationship orientation) not captured by the Big Five (Cheung et al., 2001).
The selfIndependent and interdependent selves
Markus and Kitayama (1991) described an independent self defined by personal traits and goals, common in Western cultures, and an interdependent self defined by relationships and roles, common in many East Asian, African, Latin American and Indigenous cultures. Most people and cultures blend both.
JapanAmae
Takeo Doi (1973) described amae, the comfortable wish to depend on another's kindness, as central to Japanese relationships, a need that Western theories often treated as immaturity.
PhilippinesKapwa
Virgilio Enriquez placed kapwa, a shared self that includes others, at the center of Filipino personality (Enriquez, 1992).
Africa and the diasporaThe extended self
Wade Nobles (1972) drew on African philosophy, captured in John Mbiti's (1969) phrase "I am because we are; and since we are, therefore I am," to describe a self that extends to family, community, ancestors and nature. Linda James Myers' Optimal Theory and Kobi Kambon's African Self-Consciousness build on this view.
MexicoHistoric-sociocultural premises
Rogelio Díaz-Guerrero showed how shared cultural beliefs, such as the centrality of family and respect for parents, shape personality, and how people both accept and question them.
For practiceWhy it matters
A trait such as "assertiveness" may signal confidence in one setting and disrespect in another. Counselors, teachers and researchers who know these differences make fairer judgments and choose better-fitting assessments.