Developmental, family, and ethnic influences on adolescent alcohol usage: a growth curve approach.

The influence of the developmental process of individuation, family conflict and cohesion, and ethnicity on adolescent alcohol use was examined in a 3-year longitudinal study. Participants included non-Hispanic White, Mexican American, and African American adolescents (n = 6,522) from 6th, 7th, and 8th grades. They were surveyed annually for 3 years. Depending on which aspect of individuation was measured, hierarchical linear modeling indicated that changes in adolescent individuation were related to either increases or decreases in alcohol use over the 3-year period. Separation and family conflict were related to increases in alcohol use, and intergenerational individuation and family cohesion were related to decreases in alcohol use. White and Mexican American adolescents had a faster rate of increase in alcohol use than did African American youth. Separation and family process similarly influenced adolescent alcohol use from different ethnic groups. Implications for prevention and intervention programs are discussed.