A Mixture-Modeling Framework for “Unpacking” Comorbidity and Etiological Heterogeneity of Adolescent Alcohol Use

Mixture modeling assessed different “groupings” of alcohol use and psychopathology symptoms. A tendency to act rashly when in a positive mood predicted drinking in the context of externalizing symptoms, and a tendency to act rashly when in a negative mood predicted drinking in the absence of psychopathology symptoms.