The booklet describes the American College Testing Program (ACT) research services available, gives directions for participation, and outlines benefits of participation. Descriptive research services provide information about a college and its students useful for comparison and planning. The Class Profile Service and Institutional Self-Study Service are two components of this Service. Two predictive research services (basic or standard) can be used for counseling and advising, sectioning and placement, evaluating admissions practices, evaluating grading standards, and for instructional emphases. Two research services associated with the ACT Career Planning Program are the Profile of Career Applicants and Career Planning Analysis Service. Two research services associated with ACT Financial Aid Services are a Profile of Financial Aid Applicants and a Management Reporting and Analysis Service. Special research projects are also available. Information is given on how participation can be scheduled and coordinated. Related ACT publications are listed, with brief annotations and prices. (MS)