. Author manuscript; available in PMC: 2017 Aug 11.
Published in final edited form as: Proc SIGCHI Conf Hum Factor Comput Syst. 2015 Apr 18;2015:4151–4160. doi: 10.1145/2702123.2702576
Publishing rights licensed to ACM. This is the author’s version of the work. It is posted here for your personal use. Not for redistribution. The definitive Version of Record was published in Proceedings of CSCW ’15, pp. 1277-1288. http://dx.doi.org/10.1145/2675133.2675168