the purpose of this study was to develop a practical assessment tool based on rosenbaum's (1980) self-control schedule (scs) for measuring self-control in athletes. a questionnaire was developed which in its final form, contained 35 items. the tool was shown to be a valid, reliable, readable and internally consistent assessment tool. it demonstrated objectivity and provoked honest, accurate responding in subjects. responses to the questionnaire were weighted, depending on attitudinal direction and its desirability for indicating self-control. the developed questionnaire was administered to two samples of athletes whose performances were partially attributed by the coach to a lack of self-control or a high level of self-control. the tool demonstrated sensitivity to differing levels of self-control. the questionnaire was capable of providing immediate feedback to coaches concerning an athlete's level of self-control. the questionnaire provides a total score which can be quickly interpreted by the coach as a measure of self-control in athletes.