THE COLLEGEFIELDS PROJECT (CP) WAS PRIMARILY A DEMONSTRATION OF EDUCATIONALLY BASED GROUP REHABILITATION FOR DELINQUENT AND PREDELINQUENT BOYS. SECONDARILY, IT WAS DESIGNED TO VALIDATE THE PROGRAM'S EFFECTIVENESS. GUIDED GROUP INTERACTION WAS THE MAJOR TECHNIQUE IN ALTERING EDUCATIONAL EXPECTATIONS AND REDUCING DELINQUENT BEHAVIORS AND FEELINGS OF POWERLESSNESS. BOYS WERE REFERRED BY THE COURT TO THE PROGRAM. THE PROGRAM FORMALLY FUNCTIONED IN 10-HOUR DAILY SESSIONS EACH WEEKDAY AND EVENTUALLY AROUND THE CLOCK, DESPITE THE FACT THAT THE BOYS LIVED AT HOME. BECUASE THE DESIRED NORMS OF REHABILITATION WERE GENERALLY IN DIRECT OPPOSITION TO THE NORMS OF THE STREET CULTURE, IT WAS NECESSARY FOR THE BOYS, WITH MINIMAL STAFF SUPERVISION, TO PLAN AND IMPLEMENT THE PROGRAM. WHEN COLLEGEFIELDS GRADUATES (CG) WERE COMPARED ON NUMEROUS INSTRUMENTS WITH TWO CONTROL GROUPS, IT WAS FOUND THAT--(1) RECEDIVISM AMONG CG WAS LOWER, (2) CG SHOW SIGNIFICANTLY AND CONSISTENTLY GREATER GAINS ON ALL MEASURES OF READING AND MENTALY ABILITY, (3) UNFAVORABLE OPINIONS ABOUT TEACHERS SHOWED THE GREATEST REDUCTION AMONG CG, AND (4) CG ANTICIPATE MORE SCHOOLING, HAVE BETTER REALITY ORIENTATION, AND SHOW THE GREATEST UPGRADING IN THE SOCIAL STATUS OF ANTICIPATED VOCATIONS. ALTHOUGH FOLLOW-UP STUDIES ARE CALLED FOR, THE COLLEGEFIELDS EXPERIMENT CAN BE EVALUATED AS SUCCESSFUL FOR THE REHABILITATION OF MANY 14 AND 15 YEAR OLD DELINQUENTS. (PR)