The results of the study show that the ISP generates positive changes in six attitudinal dimensions on the SCAT Inventory; Student-teacher relationship; self-esteem, attitude toward school; basic social values; advanced social values; and the perception of family cohesiveness closely relate to student performance at school. Of the six scales, four are statistically significant at the .05 level. These data indicate that the ISP is capable of generating significant change in positive attitudes over four months between pre- and posttests. These findings are in agreement with conclusions from the longitudinal study which demonstrated that drug use and other problem student behaviors were significantly lower in the ISP participants than in non-participants in the program. 4 tables and 26 references (Author abstract modified)