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With artificial-intelligence techniques demonstrating robust diagnostic capacities in medical fields like radiology, ophthalmology, and dermatology, it's not surprising to see big data analytics applied to psychological and psychiatric phenomena. Challenging several descriptions of personality types, investigators re-examined and cluster-analyzed four large datasets based on the Five-Factor Model of traits (openness to experience, conscientiousness, extraversion, agreeableness, and neuroticism).
Four robust clusters were identified in an initial dataset (145,388 individuals responding to 300 online questionnaire items) and replicated in three independent datasets (each containing 100,000–150,000 individuals responding to 44–120 items). Valid…