adults (Kouros et al., 2017; Serido et al., 2014). Young adults may be more likely to drink with family members (e.g., spouse) and thus a strong family support may be associated with more drinking in the family context during young adulthood (Homish & Leonard, 2007). Our preliminary analyses indicated significant mean-level differences in social support across developmental stages. However, there were no clear pattern of connection between differences in levels of social support and differences in the association between social support and alcohol use across developmental stages. Thus, it is unlikely that the observed differences in effects of social support across developmental stages are due to differences in endorsement of social support.