Harlem Preparatory School is an independent, nongraded, alternative school for young men and women who have either left high school before receiving a diploma, who wish to receive an academic diploma rather than a general or vocational diploma, or who wish to "recondition" their learning skills so that they may be better prepared to succeed in higher education. The Institute for Educational Development began its assessment of Harlem Preparatory School in December 1972. The plan was to collect information in two stages, the first quantitative, the second qualitative. In the first phase, school records were examined to obtain, insofar as possible, descriptive information concerning the school and its students, concentrating on the graduating classes of 1969, 1970, and 1971. The information thus obtained is summarized in the body of this report; the full annotated tables are appended. Also as a part of the first phase, a sample of students was interviewed to determine their attitudes and opinions about the school. In the second phase, three independent consultants conducted a qualitative assessment by making site visits to the school, observing classes, and speaking with faculty members and students. Resumes of the site visitors are appended. (Author/JM)