Numbers, Facts and Trends Shaping Your World

Publications

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    How Does Pew Research Center Measure the Religious Composition of the U.S.? Answers to Frequently Asked Questions

    Question 1: Measuring religious identity How does Pew Research Center measure the religious identity of survey respondents and the religious composition of the U.S.? Answer: Generally, we rely on respondents’ self-identification.  A key question we ask in many surveys is: “What is your present religion, if any? Are you Protestant, Roman Catholic, Mormon, Orthodox such […]

  • report

    Methodology

    The analysis in this report is based on telephone interviews conducted June 5-12, 2018 among a national sample of 2,002 adults, 18 years of age or older, living in all 50 U.S. states and the District of Columbia (502 respondents were interviewed on a landline telephone, and 1,500 were interviewed on a cell phone, including […]