Couple-Focused Smartphone Intervention to Reduce Problem Drinking: Pilot Randomized Control Trial

David H Gustafson Sr   ^{1, 2} , PhD ;   David H Gustafson Jr   ¹ , MS ;   Marie-Louise Mares   ³ , PhD ;   Darcie C Johnston   ¹ , MLiS ;   Olivia J Vjorn   ¹ , MS ;   John J Curtin   ⁴ , PhD ;   Elizabeth E Epstein   ⁵ , PhD ;   Genie L Bailey   ^{6, 7} , MD

¹ Center for Health Enhancement Systems Studies, University of Wisconsin–Madison, Madison, WI, United States

² Department of Industrial and Systems Engineering, University of Wisconsin–Madison, Madison, WI, United States

³ Department of Communication Arts, University of Wisconsin–Madison, Madison, WI, United States

⁴ Department of Psychology, University of Wisconsin–Madison, Madison, WI, United States

⁵ Department of Psychiatry, University of Massachusetts Chan Medical School, Worcester, MA, United States

⁶ Department of Psychiatry & Human Behavior, Warren Alpert Medical School, Brown University, Providence, RI, United States

⁷ Stanley Street Treatment and Resources, Fall River, MA, United States