Conduct research to understand a) if people benefit from using health apps and b) identify characteristics of people who benefit

We would assess the benefits of health apps on individuals' health on multiple survey and clinical diagnostic items and compare results between three groups. Group 1: no access to a smart phone; group 2: access to a smart phone, but no use of health apps; group 3: access to a smart phone and use health apps. The goal of this data would be to better develop and design mHealth interventions to improve health outcomes.