15. Why we revised our estimates for 2010
Read how Pew Research Center revised our estimates to reflect methodological advances, incorporate newly available data, and allow comparison across measures in this report.
Despite growth in the share of people who are not religiously affiliated, religion continues to have significant consequences for American society and politics. As a result, we take great care in how we measure religious affiliation and related attitudes and behaviors. The decline of religion in the United States and many other Western democracies is […]