Presents results of an analysis of the college-going rates and patterns of Florida high school seniors. The aim of the research was to develop methods that decisionmakers in the area of higher education could use to improve their understanding of students' enrollment decisions and to project enrollments in the state's colleges and universities. To this end, a model was developed that estimates the number of students from each Florida high school who enter each public college and university in the state. It is shown how the model might be used to obtain enrollment projections in public institutions. The model, which is based on data routinely available in the state, can be revised and updated annually; and the enrollment rates can be re-analyzed to discover emerging trends and changes stemming from policy initiations. 66 pp. Bibliog.