Appendix C: About American Trends Panel Experience Sampling Study
The American Trends Panel (ATP) is a national, probability-based panel of US adults fielded for the Pew Research Center by Abt SRBI. A special Diary Study was fielded November 10 through 16, 2014, with smartphone users identified in the panel. This study consisted of 14 short surveys administered twice a day for seven consecutive days. […]