This study was designed to explore the effectiveness in student performance and confidence of limited and full device simulators. The 30 employees from an information technology company who participated in this study were assigned to one of three groups. Each group received practice for learning a complex software procedure using traditional interactions, a limited device simulator, or a full device simulator. A training portal was created for each practice method. Measurements of performance included the number of times the participants repeated the assigned practice activity, the total time required to complete the procedure, a test score representing the number of mistakes made in the 20-step procedure, and the average time between mouse clicks as they selected items from menus or clicked buttons. Preliminary results indicated that a limited device simulator appears to be as effective as a full device simulator. Recommendations for further research and limitations of the study are also addressed. (Contains 6 figures and 10 tables.)