The 1985-86 Attendance Improvement/Dropout Prevention (AIDP) program aimed at improving student attendance and achievement, reducing the dropout rate, and increasing the number of students completing school. The program, which began in 1984-85, operated in selected middle, high, and special education schools and programs having large numbers of students with excessive absences. Principals could choose one of three models for implementing the six program components. This final report examines the 1985-86 AIDP program as it operated in 26 selected New York City public high schools. It presents the characteristics of the schools and students in the program; describes program implementation; analyzes attendance, courses passed, and promotion rates for the student participants; and presents conclusions and recommendation. Three appendices provide additional information on data collection procedures and school-by-school program implementations. The program consisted of the following six components: (1) facilitating services to students; (2) attendance outreach; (3) guidance and counseling services; (4) health services; (5) school level linkages; and (6) alternative educational programs. Findings show that AIDP program objectives were not met by all students. Reasons for those differences are discussed. Recommendations are made for improving the program. (PS)