Linda C. Sobell, PhD, ABPP, and Mark B. Sobell, PhD, ABPP, were awarded Presidential Citations in recognition of their influential contributions to the substance use disorders field.

The Sobells' contributions significantly inform evidence-based practice in addictions. Their early work on moderation goals, which has withstood scientific scrutiny, represented a paradigm shift in how alcohol treatments are evaluated, moving to a continuous approach to characterizing outcomes and the development of the Timeline Followback Interview. This pioneering work led to a public health approach and the current view of alcohol problems as lying on a severity continuum. Their advocacy for a stepped care model provided a foundational contribution to a scientifically based approach to alcohol problems. They were among the pioneers in developing interventions for individuals whose alcohol problems are not severe, a line of research that has enhanced our understanding of self-change. Throughout their careers they have developed innovative treatments, most recently in brief motivational and behavioral group therapy.