The cross-cultural applicability of the NEO PI-R: Evidence from South Africa

Abstract

The NEO PI-R assesses five broad domains of personality, Neuroticism, Extraversion, Openness to Experience, Agreeableness, and Conscientiousness, and is widely applied in cross-cultural research. However, its direct applicability in African contexts has been questioned, given concerns about linguistic equivalence, cultural relevance, and response styles. This quantitative, non-experimental study examined the psychometric properties of the NEO PI-R in a South African community sample of 586 individuals. Reliability was evaluated using Cronbach’s alpha and McDonald’s omega coefficients, and construct validity was explored through exploratory factor analysis (EFA). Analyses of variance, Kruskal-Wallis tests and EFAs were conducted to assess potential bias across genders, population groups, and home languages. Results indicated that while several scales achieved acceptable reliability, others produced suboptimal coefficients. The five-factor model emerged broadly in the factor analysis, though some facets failed to load as expected or demonstrated inconsistent patterns, echoing concerns about the cultural transportability of certain constructs. Evidence of construct bias across genders was minimal, but significant bias was detected across population and language groups, reflecting broader critiques of the universality of the Five-Factor Model. These findings suggest that although the NEO PI-R demonstrates some psychometric promise in South Africa, its use should be approached with caution. Direct translation and adaptation may be insufficient, and careful consideration of construct-level applicability is required before assuming cross-cultural equivalence.