This study investigated the adult adjustment of students with mental disabilities in high-school graduating classes of 1984 and 1985, 1 and 3 years after they exited high school. Two hundred sixty students from the class of 1984 were interviewed 1 year out of high school; 166 from this same class were interviewed 3 years out of school. Three hundred twenty-two students from the class of 1985 were interviewed 1 year out of high school and again 3 years out of high school. Results are reported in terms of: (1) general status information, such as marital status and living arrangements; (2) information about those competitively employed versus working in sheltered workshops (wages earned, hours worked per week, fringe benefits received); (3) "successful" adjustment relative to specific criteria; and (4) a comparison across graduating classes and between years 1 and 3. Data are presented for the total group, by gender, and by program model (resource program, special class with either much or little integration, and self-contained special class). Among many findings were the following: after 3 years, 18.5 percent met the low criteria for success and only 3.9 percent met the high standard; there were only minor differences between males and females; and students from resource programs were more successful than those from more restrictive programs. (Author/DB)