“…However, effects size indicators of the incremental contribution attributable to trait EI (e.g., ΔR 2 values) were not consistently reported across studies (see Tables 2 and 3). Mikolajczak, Petrides, et al, 2009;Mikolajczak, Roy, et al, 2007;Petrides, Pérez-González, et al, 2007;Petrides, Pita, et al, 2007;Sanchez-Ruiz, Mavroveli, & Poullis, 2013;Siegling et al, 2015;Singh & Woods, 2008). The remaining 35.1% of analyses were performed using lower-order personality constructs, such as optimism and social desirability (e.g., , or other variables, like body-mass index , and cognitive ability (Siegling et al, 2014) as baseline predictors.…”