Emotional intelligence (EI) refers to the ability to identify and manage one's own emotions, as well as the emotions of others (Goleman 1995). The concept comprises four personal and interpersonal capacities or skills: (1) Self-awareness is the capacity to tune into one's emotions and feelings and recognize how they influence us and others, i.e., our thoughts, bodily sensations, actions, and interactions at any given moment. This domain is the keystone of EI. (2) Self-management includes self-regulation and motivation. Self-regulation is the ability to keep disruptive emotions and associated automatic reactions in check before acting, allowing the construction of trusting environments, resilience, and effectiveness, even under stressful or hostile conditions. Motivation concerns the drive to pursue goals with persistence, not for external rewards but through intrinsic drive. (3) Social awareness is the ability to sense the emotions and perspectives of other individuals and groups (empathy) and understand associated patterns, such as power relationships. (4) Relationship management (also called social skills) is the capacity to build social relationships, develop networks and common ground, inspire others, and jointly accomplish goals, while efficiently managing conflicts. The fourth capacity is also considered an outcome of the others. The concept of emotional intelligencesometimes also referred to as emotional quotient (EQ), emotional intelligence quotient (EIQ), or emotional leadership (EL)has gained wide acceptance in fields such as psychology, education, health, and business management, and approaches to develop, support, and measure the associated cognitive/emotional and relational capacities have been applied and tested over the past 20 years in various contexts (Boyatzis et al. 2000; Mayer et al. 2002).