“…EI is a trait that lies at the lower levels of personality hierarchies, such as the Big Five or the Great Three, and comprises scattered aspects of these (De Raad, 2005;Petrides et al, 2007). Recent thinking and empirical evidence suggests that quadratic rather than linear equations may often provide more accurate descriptions of the relationship between personality traits and important work outcomes (e.g., Bozionelos, 2017;Chang, Wang, Liang, & Liang, 2014;Grant, 2013;Lin, Liang, Chang, & Liang, 2015;Vasilopoulos et al, 2007). A quadratic, and especially U-shaped, relationship is also in line with theory of trait EI, which derives that low scores on EI are not de facto associated with poorer outcomes (Petrides, 2011; see also Petrides, Vernon, Aitken Schermer, & Veselka, 2011).…”