This study compared 14 field instructors trained in a model based on understanding MSW students' cognitive, affective, and behavioral development and modifying their supervision to meet students' changing needs with a group of 24 untrained field instructors. T-test results suggest that students of trained field instructors were significantly more satisfied than students of those untrained with their field instructors' support and provision of specific, conceptually based feedback. Implications are discussed concerning the role of social work education programs in helping field instructors develop relevant educational skills. (Contains 3 tables.)