“…Indeed, based on metaanalyses on the prevailing psychological models of individual differences (Costa & McCrae, 1995;Horn & McArdle, 2007;John et al, 2008;McGrew & Wendling, 2010), three variables with greater explanatory power of human behavior and performance are identified. General mental ability (Gottfredson, 2002;Hunter & Hunter, 1984;Ones et al, 2005a;Ree et al, 1994;Salgado et al, 2003;Schmidt & Hunter, 1998 and the dimensions of conscientiousness and emotional stability (Barrick & Mount, 1991Barrick et al, 2001;Hogan & Holland, 2003;Hough & Furnham, 2003;Hurtz & Donovan, 2000;Ones et al, 2005b;Salgado, 1997Salgado, , 1998Salgado, , 2004Salgado & De Fruyt, 2005;Tett, Jackson, & Rothstein, 1991) are the best predictors in the civil and military fields.…”