Social influences on alcohol outcome expectancy development from childhood to young adulthood: A narrative review.

Purpose of Review: Alcohol outcome expectancies emerge in early childhood, develop throughout adolescence, and predict alcohol outcomes well into adulthood. Social factors shape how expectancies are learned in myriad ways, yet such social learning influences seldom are examined in the context of developmental factors. This review summarized literature on the social origins of alcohol expectancies through vicarious (observational) and experiential (direct) alcohol-related learning from childhood to young adulthood within a social learning framework. Recent Findings: Young children primarily endorse negative expectancies, which decline rapidly with age amidst escalations in positive expectancies across adolescence. Parents and peers can contribute to vicarious learning about alcohol and facilitate experiential learning in different ways and to varying degrees across development. Media and social media, which children are increasingly exposed to as they mature, often depict alcohol-outcome relations that may further contribute to expectancy development in later adolescence and young adulthood. Summary: Social influences on alcohol expectancy learning are complex and change over time, although this dynamic complexity typically is not depicted in extant literature. Developmentally-informed research capturing co-occurring shifts in social influences and alcohol expectancies is needed.