Five and Big Three schemes are closely related, with neuroticism being essentially identical to negative emotionality and extraversion corresponding to positive emotionality (Clark & Watson 1999, Markon et al. 2005); we refer to these two dimensions as neuroticism/negative emotionality (N/NE) and extraversion/positive emotionality (E/PE), respectively. Disinhibition does not have an exact counterpart in the FFM but instead reflects a combination of low conscientiousness and low agreeableness. Finally, openness to experience is outside the territory covered by the Big Three.