From Traits to Types: Validating Jungian Concepts with the Big Five

The Trait Response Personality Indicator (TRPI) integrates Jungian function theory with Big Five traits, proposing that preferences for temporal-context length underlie both systems. We analysed 1,021 TRPI profiles from an international volunteer sample. Profile–prototype validation yielded 87% cross-validated type-assignment accuracy (mean r = .874, 5,000-perm. p = .00020). Horn-verified Promax factor analysis confirmed that Big Five variables condense into two orthogonal axes—Thinking (Conscientiousness ↔ Extraversion) and Feeling (Agreeableness ↔ Neuroticism)—each representing a short-to-long context gradient (inter-factor r = .20). Cronbach’s α values for the 26-item short form (O =.72, C = .68, E = .68, A = .73, N = .73; α = .71) indicate acceptable reliability for screening purposes. Application of a hybrid Pearson–Euclidean agglomerative clustering method produced four distinct and theoretically coherent modes, each displaying a strong non-random association with TRPI-assigned types (χ2 = 1,344.41, df = 45, p = 3.12 ×10−252) despite moderate agreement with previous clusterings (ARI = 0.267). These findings support TRPI’s central claim that temporal-context processing underpins higher-order personality structure, providing a functional bridge between trait, type, and neuro-cognitive models.