While it has been demonstrated that accident and non-accident subjects in the present population of young airmen differ significantly from one another; and while psychological measures can be used to predict accident status for this population with a high degree of success, much more work remains to be done before a clear understanding of the psychodynamic relationships existing between the structure and functioning of the individual and his accident susceptibility can be achieved. It also remains to be shown whether the psychological differences which are related to accident susceptibility in this particular population would also prove discriminating with other, differently composed populations.