The centerpiece of Pew Research Center’s 2014 Religious Landscape Study is a nationally representative telephone survey conducted June 4-Sept. 30, 2014, among a sample of 35,071 U.S. adults.

Ipsos fielded this sample jointly with the American Trends Panel sample, which they also administer, from Jan. 21 to Feb. 3, 2020. In total, 2,558 Black adults from KnowledgePanel completed the survey ...