Problem: Please summarize the following text
Next, let us consider how hiring based on extraversion relates to the Fairness Principle. According to the Fairness Principle, it is not fair to hire people based on features that people cannot control themselves. Fairness in hiring requires, at least to a certain extent, a fair competition which includes the opportunity for people to train and learn the skills necessary for the job. So, can one learn to be more extraverted or is being an extravert something one is born with? There seems to be a consensus among psychologists that personality dimensions, such as extraversion, are 40-50% heritable (Bouchard & McGue, 2003). In a wide range of different contexts, roughly 40-50% of the variation in people's personalities can be explained by genetic variation across them. So, whether one is extraverted or introverted is based, roughly, equally on genetics and cultural and societal factors. Psychologists use the term "temperament" to refer to the biological aspect; together with societal aspects, our temperament makes up our personality. Hence, in some ways, personality could be more flexible than our race or sex (unlike gender), which, in some views, are determined by our biology. On the other hand, since one cannot change one's biology, it seems safe to conclude that one's control over one's personality is limited. Hence, extraversion, or other personality dimensions, is unlike normal skills, knowledge or technical qualifications. Need Assignment Help?