A consortium of community groups, medical researchers, and arts groups in Cleveland has receieved a $1 million federal grant to mount a major study intended to determine whether the arts can play a major role in keeping children from indulging in illegal drugs and risky sexual behavior. The study will revolve around 300 test subjects, all African-American youths between 11 and 14 years old, who will participate in a specially designed arts curriculum, which will be partially designed by community leaders in the city.