This report presents information on the effectiveness, including cost effectiveness, of many programs of the Austin (Texas) Independent School District (AISD). In 1991-92, the AISD Office of Research and Evaluation (ORE) reviewed 85 programs or program components. Cost effectiveness was calculated for 18 programs using an achievement effect measure and for 16 programs using a dropout prevention effect measure. Most evaluated programs were rated as effective. In general, the programs showing the highest achievement gains for students tend to be programs that offer students enriching experiences in addition to the regular curriculum. Most have a relatively high initial cost, but once in place, their per-pupil costs are relatively low. A common feature for successful dropout programs is that they provide students with individual attention or the possibility of flexibility in class schedules and enrichment. These findings are in keeping with other conclusions that the ORE has drawn over the years, such as the fact that students with an opportunity to learn will learn, and that a limited number of people need to be responsible for a student's learning. Early intervention is recognized as preferable to later remediation. In addition, it has been shown that smaller class sizes produce greater learning only through grade 1. One summary table, three tables of program data, and three tables of example data complement the discussion. (Contains 12 references.) (SLD)