Published on in Vol 20, No 9 (2018): September
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/10297, first published
.

1 Human-Computer Interaction Lab, Computer Science, Wellesley College, Wellesley, MA, US
2 Department of Technology Management & Innovation, New York University, Tandon School of Engineering, Brooklyn, NY, US
3 Open Humans Foundation , Boston, MA, US
*these authors contributed equally