The impact of drug use and race on school performance was investigated
. Data were collected retrospectively from a sample of 100 students in
Grades 9 through 12, using a questionnaire devised by the authors. Mo
st recent grades in English, mathematics, social studies, and science,
and percentile scores on the mathematics portion of a recent Metropol
itan Achievement Test, constituted achievement. Sufficient data were o
btained for 38 students (11 black, 18 white, and 9 Latino), Results in
cluded significant main effects for both race (p <.05) and user status
(p <.05). An interaction of race and user status was suggested. While
black users and nonusers did not differ across academic areas, large
differences for the two other ethnic groups emerged.