The current study examined alcohol expectancies and drinking motives as correlates of alcohol involvement among adolescents at high and low risk for future alcoholism. Measures of alcohol expectancies, drinking motives, presumed personality risk for alcoholism, family history of alcoholism, and alcohol involvement were completed by 979 high school students. Alcohol expectancies and drinking motives were found to vary as a function of risk status. More important, the strength of the relations between alcohol expectancies or drinking motives and alcohol involvement varied as a function of risk status. Expectancies of altered social behavior were particularly associated with low-risk drinking. Expectancies of enhanced cognitive and motor functioning, expectancies of tension reduction, expectancies of deteriorated cognitive and behavioral functioning, personal motives, and power motives were particularly associated with high-risk drinking. These expectancies and motives are of potential prognostic significance in the development of alcoholism and may be important targets for modification in primary prevention programs.Alcohol use is extremely common in adolescence. Recent surveys show that a substantial majority of adolescents (80%-93%) have reported at least some experience with alcohol (Jalali, Jalali, Crocetti, & Turner, 1981;Johnston, O'Malley, & Bachman, 1984). This high prevalence of adolescent alcohol use suggests that drinking in this age period is a socially normative behavior. The onset of drinking in adolescence may be part of a normal process of internalizing social norms and experimenting with adult behaviors (Barnes, 1977). For many adolescents, drinking can be considered a normal, social, transitional behavior that does not necessarily call for clinical concern or intervention.However, although some alcohol use is normative, adolescent drinking can also be problematic. It is important to distinguish normal adolescent drinking from drinking that has clinical implications. Most previous research has distinguished normal adolescent drinking from adolescent problem drinking by the quantity and frequency of use combined with the negative social consequences of alcohol intake (e.g., traffic accidents, school failure, family problems; Mayer & Filstead, 1979). Adolescent problem drinkers are one obvious target group for clini-This study is based on a master's thesis conducted by the first author at the University of Missouri-Columbia under the supervision of the second author.