This study examined the relationship between Information Systems (IS) managers' formal education, level of technical and managerial training and their managerial effectiveness as perceived by their subordinates. The study finds that there is a strong positive relationship between the amount of technical training IS managers have received and their managerial effectiveness as perceived by their subordinates. There is also a significant relationship between IS managers' level of managerial training and their subordinates' perception of their managerial effectiveness. The managers' level of formal education was not found to have a significant relationship to the subordinates' perceived level of (their) managerial effectiveness. Finally, a regression model has been proposed to measure Information System managers' managerial effectiveness. (Contains 4 tables.)