Problem: Please summarize the following text A recent study (Shakur & Phillips, 2022) examined how people think about demographic attributes used in hiring. The study found that people rely on controllability and relevance dimensions to justify their perceptions of hiring practices; largely associating uncontrollable, irrelevant attributes, such as race and sex, with discrimination. We take this as our starting point. People believe hiring practices are wrong when they violate controllability and relevance, and morally just when controllable and relevant inputs determine outcomes. The article proceeds as follows. After some conceptual groundwork showing why differential treatment based on extra/introversion qualifies as discrimination (Sect. "Personality Discrimination"), we explain two principles on which the argument is built (Sects. "The Relevance Principle" and "The Fairness Principle"). These are 1) the Relevance Principle and 2) the Fairness Principle. Sections. "Is Extraversion Relevant for the Job Performance?" and "Is Selection Based on Extraversion Fair?" explain why discrimination in hiring against introverts violates these two principles. Section "Objections and the Replies" considers two immediate objections against our arguments. We argue that while the objections have some argumentative force, they do not refute the main claim of this paper. We thus conclude (Sect. "Conclusion") that for a significant number of jobs, it is morally wrong to hire based on extraversion. Need Assignment Help?