Lex is currently collaborating as a Research Assistant at the Data Science for Dynamic Intervention Decision Making Center (D3C) at the University of Michigan. His research focuses on digital behavior change interventions (eHealth, mHealth) and is assisting the D3C to develop novel advanced intervention approaches, including dyadic just-in-time adaptive interventions (JITAIs) involving multiple participants as the focus of an intervention as a means to promote intervention effectiveness, social support and sustainability of positive health behaviors.