This paper examines how membership in a highly concentrated Vietnamese
-American community affects the drug and alcohol use of Vietnamese-Ame
rican secondary school students. It suggests that research on adolesce
nt substance abuse has had a tendency to concentrate on the family env
ironment and the peer group. For this ethnic group, however, the prese
nt study finds that involvement in the ethnic community has a strong n
egative effect on drug and alcohol abuse, both directly and indirectly
, through lessening the likelihood that adolescents will have substanc
e-abusing friends. Vietnamese language use is found to be an especiall
y influential aspect of ethnicity. It is suggested that research on ad
olescent substance abuse should place more emphasis on community-level
explanations, such as the effect of ethnic and other sorts of social
groups that surround individuals and families.