The All Day Kindergarten (ADK) Program was implemented in the Columbus (Ohio) Public Schools in January 1972 to provide full-day instruction to prepare underachieving kindergarten pupils for first grade. The ADK is an individualized language-based program that reinforces skills, concepts, and educational experiences taught in regular kindergarten classrooms. Starting in September 1991, the ADK was evaluated in terms of: (1) children's successful completion of 12 of 17 items on a test of early concepts about print; and (2) participation of parents in their children's education. The evaluation was based on data from standardized achievement tests, pupil census logs, pupil data sheets and rosters, and parent involvement logs. The program served 582 pupils for an average of 13.6 hours of instruction a week. The evaluation sample comprised those students (n=353) who attended 80% or more of the instructional periods. Of those, over 88% successfully completed 12 or more of the items on the concepts about print test. Parents of 99.1% of the pupils participated in at least one program-related activity during the year. Teachers had a positive response to their inservice training. Increased parent involvement, increased teacher inservice training, continued use of current recordkeeping documents, and continued school visitations were recommended. An appendix contains forms used for the evaluation. (MM)