“…Childhood ADHD is associated with more alcohol problems (e.g., Pedersen et al., ) and higher rates of alcohol use disorder (AUD) in adulthood (Groenman et al., ; Lee et al., ). Multiple explanations for these associations have been posited (Molina and Pelham, ), including the following: elevated trait impulsivity (Pedersen et al., ); the existence of a single externalizing spectrum comprising ADHD, conduct disorder, antisocial personality, and AUD comorbidities (Beauchaine et al., ; SerraâPinheiro et al., ); and shared genetic liability (Derks et al., ; Knopik et al., ). Although these broad, genetically driven factors contribute significant risk for substance use, that risk likely manifests day to day through microâlevel processes such as momentary, contextual drinking characteristicsâin other words how, where, when, and with whom individuals drink.…”