A STEP BY STEP OUTLINE OF THE SYSTEM DEVELOPED TO MAKE AND KEEP RECORDS FOR A 2-YEAR FOLLOWUP STUDY OF IOWA HEADSTART PARTICIPANTS (SUMMER 1965), SUPPLIES DETAILED INFORMATION FOR THE ESTABLISHMENT OF A SIMILAR SYSTEM. THE IOWA EDUCATION INFORMATION CENTER OF THE UNIVERSITY OF IOWA AND THE OFFICE OF ECONOMIC OPPORTUNITY COOPERATED TO DEVELOP AN INFORMATION RETRIEVAL SYSTEM INCLUDING PUPIL IDENTIFICATION AND CONTINUOUS FILE MAINTENANCE. INCLUDED IN THIS FINAL REPORT OF THE PROJECT ARE COPIES OF THE TAPE LAYOUTS RELEVANT TO THE FILES, AND RETRIEVAL FORMATS NEEDED TO EXTRACT INFORMATION ABOUT THE HEADSTART POPULATION. A LONGITUDINAL FILE HAS BEEN SUCCESSFULLY MAINTAINED ON 79.4 PER CENT OF THE ORIGINAL HEADSTART PARTICIPANTS, A VERY GOOD RECORD CONSIDERING THE NUMBER OF PUPILS ENROLLED IN PAROCHIAL SCHOOL IN IOWA. (MS)