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This paper sets out the theoretical foundation of emotional intelligence (EI) as a constellation of traits and self‐perceived abilities. The discriminant validity of trait EI is explored in two studies. In study 1 (N = 227), the psychometric properties of the BarOn Emotional Quotient inventory were scrutinized through confirmatory factor analysis and the measure was found to be unifactorial. When the EQ‐i was examined concurrently with the Eysenck Personality Profiler, a clear trait EI factor emerged in Eysenckian factor space. In study 2 (N = 166), a modified version of the EQ‐i was examined concurrently with the NEO PI‐R and a truncated trait EI factor was isolated within the Five‐Factor Model. Results are discussed with explicit reference to established personality models and it is concluded that trait EI can be conceptualized as a distinct composite construct at the primary level of hierarchical trait structures. Copyright …