This study is an investigation of the derivation of scores that predict whether or not prospective first-time freshmen will apply or will enroll and whether or not first-time freshman enrollees will graduate using data from the ACT (American College Testing) assessment. Using a regression methodology, four basic scores are derived to be independent of academic ability, which is indicated by a fifth score. Using cross-validation populations, each of the scores is shown to predict the desired behavioral criterion quite well, and each should serve its intended purpose. The paper discusses potential uses of the scores and examines the inclusion or exclusion of no-response items (where the individual did not give a response), the optimal number of data items to include in an enrollment management score, and other characteristics of the scores. (Contains 5 footnotes and 5 tables.)