Trends in Party Identification of Religious Groups
Sample Sizes and Margins of Error
This analysis is based on aggregated data from more than 84,000 interviews with registered voters conducted by the Pew Research Center for the People & the Press in 54 surveys completed between January 2008 and December 2011. These surveys are combined into one large data file that can be sorted according to a range of demographic and religious characteristics. The tables below show the number of interviews and corresponding margins of error for 2008 and 2011 for the groups analyzed in this report.