This project focused on synthesizing the effects of grant aid to undergraduates. Grants, defined as money that reduces college costs and does not have to be repaid, may be awarded based on financial need and/or academic merit, place of residence, or other criteria. Aid includes grants, scholarships, “free tuition,” tuition waivers, and subsidies. Tuition-price setting, athletic scholarships, individual tax savings accounts, work study, and aid programs requiring service are excluded. Aid programs that are bundled together and do not analyze the effect of one specified aid program are also excluded. Studies of the elimination or loss of grant aid meeting these intervention criteria were included and analyzed separately from the studies evaluating effects of the presence of grant aid. Studies that met inclusion criteria featured seven different types of grant aid programs: 1) federal grants, 2) national scholarships, 3) state-sponsored grants, 4) institutional grants, 5) student performance-based financial incentives, 6) emergency financial assistance, and 7) promise programs.