The present study examined differences in cognitive aptitude and personality traits between graduates (n D 241) and nongraduates (n D 533) of U.S. Air Force combat control (CCT) training. The Armed Services Vocational Aptitude Battery (ASVAB) and Emotional Quotient Inventory (EQ-i) were completed prior to the start of training. Graduates scored significantly higher on all four ASVAB composite scores (p < .001, g > .31) and on the general mood, intrapersonal, adaptability, and stress management domains (p < .001, g > .35) of the EQ-i, but no difference existed on the interpersonal domain (p D .41, g D .08). Findings suggest that successful CCT candidates have above-average ability to maintain a positive attitude, self-acceptance, recognition of internal emotional states, and perceived control over thoughts and actions. The EQ-i improves the prediction of CCT training graduates, with optimism and happiness being the relative strongest predictor (AOR D 1.07, p < .001).