Estimates of the number of children of alcoholics (COA's) and the prev
alence of alcohol use disorders among them can vary widely from study
to study depending on research design features such as sample selectio
n, data collection strategies, and assessment methods. Although invest
igators agree that COA's are at higher risk for developing alcohol use
disorders than children of nonalcoholics, problems with alcohol are n
ot an inevitable consequence of COA status. Recent research has identi
fied numerous biological, psychological, and social factors associated
with a family history of alcoholism that may play a role in determini
ng whether COA's will develop an alcohol use disorder. The conceptual
model presented in this article gives a general overview of how such r
isk factors can interact with life stressors to influence alcohol-rela
ted behavior in COA's. (Subsequent articles in this issue explore some
of the specific factors identified in the model in greater depth.)