The present study examined the utility of cognitive and non-cognitive psychological testing to predict training completion in 1,003 air traffic controller (ATC) trainees. The results of predictive modeling indicate that pre-training personality testing, as measured by the Emotional Quotient Inventory, may significantly add predictive validity to predicting graduation from training beyond the predictive validity of a commonly used measure of cognitive aptitude (Armed Services Vocational Battery) testing for selecting ATC trainees. The results of statistical analyses reveal cognitive aptitude, while predictive of graduation, is necessary but not sufficient for identifying suitable trainees. Results reveal that the assessment of personality traits is an especially important component to selection processes.
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