Office of Behavioral and Social Sciences Lecture Series New mHealth technologies are proliferating at an astonishing rate, with many new tools being harnessed for behavior change interventions. Because they are inexpensive, transportable, and have broad (and growing) penetration, mHealth tools (e.g., smartphone apps, text messaging, accelerometers/pedometers) have the potential to overcome access barriers and extend the reach of behavioral interventions to the large population that may benefit. The co-emergence of new mHealth tools and new, efficient methodologies for intervention development creates an opportunity to design behavioral interventions more systematically than the traditional “kitchen sink” approach. The presenter will illustrate via a series of studies of behavioral in...