Evaluation of a Mobile Device Survey System for Behavioral Risk Factors (SHAPE): App Development and Usability Study

Ingrid Oakley-Girvan   ^{1, 2, 3} , PhD, MPH ;   Juan M Lavista   ⁴ , MSc ;   Yasamin Miller   ⁵ , MSc ;   Sharon Davis   ⁶ , MPA ;   Carlos Acle   ⁷ , MBA ;   Jeffrey Hancock   ⁸ , PhD ;   Lorene M Nelson   ⁹ , PhD, MS

¹ Public Health Institute, Oakland, CA, United States

² Canary Center at Stanford for Cancer Early Detection, Stanford University School of Medicine, Stanford, CA, United States

³ Stanford Cancer Institute, Stanford University, Stanford, CA, United States

⁴ Microsoft, Kirkland, WA, United States

⁵ Yasamin Miller Group, Ithaca, NY, United States

⁶ Department of Research, Cancer Prevention Institute of California, Fremont, CA, United States

⁷ Onetree, Kirkland, WA, United States

⁸ Department of Communication, Stanford University, Stanford, CA, United States

⁹ Stanford Center for Population Sciences, Department of Health Research and Policy, Stanford University School of Medicine, Stanford, CA, United States