Project DRIVE (Demonstration and Research for Indian Vocational Education) tested the suitability of the Oklahoma State Department of Vocational and Technical Education Unit-Based Curriculum and instructional materials for Indian vocational education. All students in welding and auto body programs at the United Tribes Educational Technical Center received their training using this material. At the end of an eighteen-month period they were compared to a control group which had completed the programs in the preceding eighteen months on three bases: student retention, student completion, and student interest and satisfaction. Welding students in the experimental group had a better retention and a lower termination rate than those in the control gorup. Auto body students in the experimental group showed a lower completion and higher termination rate. Findings indicated that teacher willingness to use the unit materials is a major factor in success or failure of the materials, as demonstrated in the auto body program where poor instructor attitude contributed to a lack of increase in completion rates. Furthermore, adoption of new curricula requires teacher training in the new material prior to its implementation, again as demonstrated by retention and completion results for students taught by the welding instructor trained in the new materials and the untrained auto body instructor. (YLB)