The Attendance Improvement/Dropout Prevention (AI/DP) Program is an umbrella program serving high-risk students in New York City's public schools. This report focuses on the high school AI/DP program, serving mainly ninth and tenth grade students who met truancy and academic failure criteria. The three short-term program objectives were: (1) improved attendance over 1983-84 rates; (2) an increased number of courses passed; and (3) improved attitudes toward school. The quantitative outcomes reveal that overall, the attendance and achievement objectives were not met: attendance levels remained about the same, while achievement levels declined moderately. Students participating in Project SOAR, the only component of AI/DP which provided intensive academic remediation as well as supportive services, maintained their high attendance and substantially improved both their academic achievement and attitudes toward school. Among the factors significantly affecting the program's equivocal findings were the newness of the program; the diversity of goals and students; and the transition difficulties of ninth graders. Recommendations include: (1) more clearly defined, communicated, and monitored eligibility requirements; (2) clear and measurable objectives for each component; (3) possible expansion of components which offer an integrated program of instruction, remediation and supportive services; and (4) follow-up services to students who no longer receive program services. (ETS)