The study also examined supervisors' behaviors across the three work environments of a manufacturing company, a school system, and a hospital. The results showed that the supervisors referred cocaine abusers more often to an EAP than alcohol or nonsubstance abusers. The findings indicate that the subjects fond cocaine abuse to be a more severe problem than the other two impairments. Alcohol abuse, in turn, was considered to be a more severe problem than a job impairment by itself. However, contrary to expectations, supervisors associated with a school setting were no more likely to refer employees than those affiliated with a hospital or manufacturing company. 1 table and 13 references