A STUDY, IN PROGRESS, IS ATTEMPTING TO DETERMINE THE INTERACTION OF VARIOUS REWARD CONDITIONS AND VARIOUS TYPES OF PRESCHOOL EXPERIENCE WITH DISCRIMINATION LEARNING. THE SUBJECTS ARE 240 4- AND 5-YEAR-OLD CHILDREN WITH THREE TYPES OF PRESCHOOL EXPERIENCE--1 TO 3 MONTHS OF HEAD START, 10 TO 12 MONTHS OF HEAD START, AND NO ATTENDANCE IN A PRESCHOOL PROGRAM. THE STUDY IS ATTEMPTING TO ASCERTAIN WHETHER OR NOT THE CULTURALLY DISADVANTAGED CHILD, SUPPOSEDLY IMMEDIATE-GRATIFICATION ORIENTED, WILL, AS A FUNCTION OF PARTICIPATION IN HEAD START, ADOPT A MORE FUTURE-RELATED PERSPECTIVE. FOUR REWARD CONDITIONS ARE BEING USED WHEN THE CHILD MAKES A CORRECT CHOICE IN THE ASSIGNED TASK--(1) A LIGHT GOES ON, (2) A PROMISE OF CANDY UPON COMPLETION OF THE EXPERIMENT, (3) AN IMMEDIATE REWARD OF CANDY, AND (4) AN IMMEDIATE REWARD OF A TOKEN WHICH CAN BE EXCHANGED LATER FOR CANDY. THE TENTATIVE RESULTS SHOW THAT THE HEAD START GROUPS LEARN THE CORRECT RESPONSE SOONER THAN THE NON-HEAD START GROUP ON CONDITIONS ONE AND TWO BUT NOT NECESSARILY ON CONDITIONS THREE AND FOUR. PART TWO OF THIS DOCUMENT PROPOSES EIGHT STUDIES TO OBTAIN INFORMATION ON WHETHER OR NOT CHILDREN OF DIFFERENT RACES PERCEIVE SIMILAR STIMULI DIFFERENTLY BECAUSE SUCH STIMULI HAVE RACIALLY RELATED ASPECTS. (WD)