THIS REPORT, THE THIRD OF THREE REPORTS INITIATED BY THE MINNEAPOLIS YOUTH DEVELOPMENT PROJECT (YDP), DISCUSSES PATTERNS OF MOBILITY AMONG 798 SIXTH-GRADE STUDENTS FROM 11 SELECTED ELEMENTARY SCHOOLS. SIX OF THESE SCHOOLS WERE IN LOW-INCOME, HIGH-DELINQUENCY "TARGET" AREAS. FIVE WERE LOCATED IN MIDDLE-CLASS, LOW-DELINQUENCY AREAS AND WERE DESIGNATED AS "COMPARISON" SCHOOLS. THE PRESENT INVESTIGATION SOUGHT TO DETERMINE WHETHER, IN MOVING, THE TARGET CHILD CHARACTERISTICALLY REMAINED IN THE SAME AREA OF THE COMMUNITY, WHETHER THERE WAS A PARTICULAR PATTERN OF MOVEMENT, AND WHETHER THE TARGET CHILD MOVED INTO A WEALTHIER NEIGHBORHOOD OR SIMPLY INTO ANOTHER POOR AREA. THE POSSIBILITY OF THE COMPARISON CHILD'S EVER ATTENDING SCHOOLS IN THE LOW-INCOME AREAS WAS ALSO EXAMINED. PATTERNS OF MOBILITY WERE IDENTIFIED FROM THE NUMBER OF SCHOOL REGISTRATIONS LISTED IN STUDENTS' SCHOOL RECORDS. DISTRIBUTED THROUGHOUT THE FINDINGS ARE MAPS AND TABLES OF PERTINENT DATA. FINDINGS FROM THE FIRST TWO YDP STUDIES ARE BRIEFLY DESCRIBED. (LB)