Why Pew Research Center typically can’t report the views of smaller U.S. religious groups
While the largest Christian traditions and religious “nones” can be consistently analyzed, smaller groups produce a large margin of error.
Numbers, Facts and Trends Shaping Your World
Since the establishment of the ATP, the Center has gradually migrated away from telephone polling and toward online survey administration, and since early 2019, the Center has conducted most of its U.S. polling on the ATP. This shift has major implications for the way the Center measures trends in American religion – including those from the Center’s flagship Religious Landscape Studies, which were conducted by phone in 2007 and 2014.