“…This division or specification allows researchers a more precise approach to linking a particular personality trait to a particular outcome [42,66,94]. At present, the Big Five personality traits are the predominant set of traits used across many fields [57,81,82], including HRI studies [28,55,77,81,82,99]. The personality traits that make up the Big Five are extroversion, agreeableness, conscientiousness, neuroticism (sometimes called emotional instability), and openness to experience [36,50,65].…”