Longitudinal Validity and Reliability of Brief Smartphone Self-Monitoring of Diet, Stress, and Physical Activity in a Diverse Sample of Mothers

Dallas Swendeman   ^{1 *} , PhD, MPH ;   Warren Scott Comulada   ^{1 *} , Dr PH ;   Maryann Koussa   ^{1 *} , MPH ;   Carol M. Worthman   ^{2 *} , PhD ;   Deborah Estrin   ^{3 *} , PhD, MS ;   Mary Jane Rotheram-Borus   ^{1 *} , PhD ;   Nithya Ramanathan   ^{4 *} , PhD

¹ Department of Psychiatry and Biobehavioral Sciences, David Geffon School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States

² Department of Anthropology, Emory University, Atlanta, GA, United States

³ Cornell Tech, Cornell University, New York, NY, United States

⁴ Department of Computer Science, University of California, Los Angeles, Los Angeles, CA, United States

*all authors contributed equally