STATEMENTS OF THE PROBATION AND DISMISSAL POLICIES FOR EACH OF 21 CALIFORNIA JUNIOR COLLEGES ARE ACCOMPANIED BY STATISTICAL DATA SHOWING THE NUMBERS OF STUDENTS AFFECTED BY THE POLICIES, AND--IN SOME CASES--THE EFFECTS OF RAISING THE STATE MINIMUM GRADE POINT AVERAGE FOR GOOD STANDING FROM ITS CURRENT 1.5 TO 2.0. CONCLUDING THAT PROBATION-DIMISSAL-RETENTION STANDARDS CONSTITUTE A COMPLEX PROBLEM WHICH PROBABLY WILL NOT BE SOLVED BY REGULATIONS, THE AUTHOR RECOMMENDS FURTHER STUDIES--(1) COMPILATION OF AN ACCURATE RECORD OF THE CURRENT JUNIOR COLLEGE PRACTICES WITH RESPECT TO PERFORMANCE STANDARDS, (2) THE IMPACT AND EFFECTIVENESS OF SELECTED PRACTICES ON STUDENT ACHIEVEMENT, (3) SIMILAR STUDIES IN THE UNIVERSITY AND STATE COLLEGES, (4) MEANS OF EARLY IDENTIFICATION OF STUDENTS WHO, UNDER NORMAL PROCEDURES, WOULD HAVE MINIMAL SUCCESS IN JUNIOR COLLEGE, AND (5) IMPROVED, INNOVATIVE PRACTICES TO INCREASE THE VALUE OF POST-HIGH SCHOOL EDUCATION TO THOSE FOR WHOM TRADITONAL PROGRAMS ARE INEFFECTIVE. (WO)