A study was conducted at North Harris County College to determine the extent to which its Developmental Studies Program (DSP) was meeting stated goals and to assess the predictive reliability of the screening tests used to place incoming students in DSP courses. The study involved: (1) an assessment of the need for the DSP program as evidenced by the percentage of freshmen students enrolled in DSP courses from 1973-74 through 1979-80; (2) a comparison of the sex, course grades, ethnicity, high school attendance, and American College Testing (ACT) scores of developmental and non-developmental English and math students; (3) a comparison of the outcomes of developmental and non-developmental English and math courses in terms of attrition and completion rates; (4) an examination of the mainstreaming effect of the DSP as evidenced by the number of DSP students who went on to successfully complete regular freshman English and math courses; (5) a statistical correlation of grades earned by students in regular English and math courses with their scores on four screening tests (i.e., the California Achievement Tests, ACT, Scholastic Achievement Test, and Revrac tests); and (6) an assessment of the extent to which the DSP lab was used and satisfied the needs of students. The study report details the methodology and findings of each of these six components. (JP)