Published on in Vol 5, No 3 (2018): Jul-Sept
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/10454, first published
.
1 Department of Clinical Psychology, Graduate School of Education, The University of Tokyo, Tokyo, Japan
2 Division of Computer Science and Information Technology, Graduate School of Information Science and Technology, Hokkaido University, Sapporo, Japan