**Principal Investigator(s):**
**Richard Shafranek**
Northwestern University
Email: [RichardShafranek2018@u.northwestern.edu][1]
Home page: [http://richardshafranek.com/wp/][2]
**Sample size**: 2073
**Field period**: 11/14/2016-12/16/2016
*Further information about this study is not available at this time.*
[1]: mailto:RichardShafranek2018@u.northwestern.edu
[2]: http://richardshafranek.com/wp/