PROJECT "CATCH-UP" WAS DESIGNED TO GIVE CULTURALLY DISADVANTAGED 13 AND 14 YEAR OLDS A SUMMER PROGRAM OF ACADEMIC REMEDIATION, ACCELERATION, AND GENERAL CULTURAL ENRICHMENT. 49 YOUNGSTERS FROM THE PROJECT WERE USED IN THIS STUDY TO MEASURE PROJECT PARTICIPANTS' ATTITUDES TOWARD THEMSELVES AND TO EVALUATE DIFFERENTIAL RESPONSES TO THE PROJECT AND SUBSEQUENT REACTIONS TO SCHOOL EXPERIENCE. THE CALIFORNIA PSYCHOLOGICAL INVENTORY WAS ADMINISTERED TO THE PARTICIPANT GROUP, WHICH CONSISTED OF 26 AMERICAN-INDIANS (13 BOYS AND 13 GIRLS), 13 CAUCASIANS (6 BOYS AND 7 GIRLS), AND 10 MEXICAN-AMERICANS (5 BOYS AND 5 GIRLS). THE TEST RESULTS SHOWED THAT FEMALES RESPONDED IN A CONSISTENT NEGATIVE PATTERN ACROSS THE 18 SUB-TESTS WITH MEXICANS LOWEST AND CAUCASIANS HIGHEST. ETHNIC GROUP DIFFERENCES FOR MALES INDICATED THAT THE MEXICAN AND INDIAN HAD LOWER SOCIAL PRESENCE THAN THE CAUCASIAN. FLEXIBILITY SCORES FOR THE MEXICAN MALE WERE LOWER THAN FOR THE CAUCASIAN OR INDIAN, BUT HIGHER ON SOCIAL RESPONSIBILITY, TOLERANCE, AND INTELLECTUAL HONESTY. (ES)