A school-bared, multicomponent drug prevention model operating in a mi
ddle school in Charleston, South Carolina was evaluated. The project i
ncluded schoolwide curricular changes, instructional changes, changes
to school norms aimed at all staff and students in the school, and cha
nges targeting the 10% of the students in the school judged to be at h
ighest risk for drug involvement. The evaluation results to date indic
ate a positive effect of the program on grade point average and a decr
ease in peer drug influence for high-risk program students as compared
with high-risk comparison students. Although some negative effects al
so were observed during the 1992-1993 school year those were likely a
result of the mix of services provided that year and the influence of
variables outside the framework of the program. As the services were m
odified, the negative effects disappeared. More fine-grained analyses
are under way.