A comprehensive report of the last six weeks of a three-month field trial of DISCOVER, conducted in one junior high and one senior high school in Baltimore, Maryland, and interpretation of the collected data are provided in this report. (DISCOVER, the product of four years of development, 1972-76, is a computer-based guidance system which includes twelve modules of interactive content.) Evaluative findings cover the assessment of student and parent reactions to DISCOVER and the effects of the use of DISCOVER on students, using the Assessment of Career Development (ACD) and the Career Development Inventory (CDI) instruments, four questionnaires, and one interview schedule. Some of the major findings presented follow: (1) Students seemed to have moved toward an increased specification of their educational plans as a result of using DISCOVER; (2) DISCOVER received a favorable overall response from both students and parents; and (3) no significant differences between the experimental and control groups for either high school or junior high school students on any of the scales of the ACD or CDI were found. Discussion of results also includes generalizable findings regarding the computer-assisted delivery system. Appendixes comprise approximately one-half of the document and include a descriptive brochure, student questionnaires, interview questions, cover letter and questionnaire sent to parents, and tabulated response data for questionnaires. (TA)