1. Source: Professor Mike Smith, University of Manchester; John E. Hunter & Rhonda Hunter, “Validity and Utility of Alternative Predictors of Job Performance”, Psychological Bulletin, Vol. 96, No. 1, p. 90; Robert P. Tett, Douglas N. Jackson and Mitchell Rothstein, “Personality Measures as Predictors of Job Performance: A Meta-Analytical Review”, Personnel Psychology, p. 703, Michigan State University’s School of Business