Published on in Vol 19, No 4 (2017): April
1 Department of Preventive Medicine, University of Southern California, Los Angeles, CA, United States
2 Center for Self-Report Science, University of Southern California, Los Angeles, CA, United States
3 Center for Economic and Social Research, University of Southern California, Los Angeles, CA, United States
4 Department of Psychology, University of Southern California, Los Angeles, CA, United States
5 mHealth Collaboratory, University of Southern California, Los Angeles, CA, United States
*all authors contributed equally