Numbers, Facts and Trends Shaping Your World

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    Appendix A: Political categorization

    For this analysis, we grouped people into two political categories: those who support the governing political party (or parties) in their country, and those who do not. These categories were coded based on the party or parties in power at the time the survey was fielded and on respondents’ answers to a question asking which […]

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    Methodology

    The American Trends Panel survey methodology Overview Data in this report comes from Wave 164 of the American Trends Panel (ATP), Pew Research Center’s nationally representative panel of randomly selected U.S. adults. The survey was conducted from Feb. 24 to March 2, 2025. A total of 5,123 panelists responded out of 5,737 who were sampled, […]

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    Methodology

    This report is based on two waves of Pew Research Center’s American Trends Panel: ATP Wave 166, conducted March 24-30, 2025, and ATP Wave 170, conducted May 5-11, 2025. The American Trends Panel survey methodology, Wave 166 Overview Data in this report comes from Wave 166 of the American Trends Panel (ATP), Pew Research Center’s […]

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    Appendix A: Adjusting for mode effects when combining telephone surveys and the American Trends Panel

    Since 2018, Pew Research Center’s primary U.S. public opinion source has been online surveys conducted on the nationally representative American Trends Panel. Previously, telephone surveys were the Center’s primary U.S. public opinion source. This transition from telephone to online surveys was necessary for a variety of reasons, including declining cooperation rates by telephone and increasing […]

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    7. ‘Other religions’ population change

    Baha’is, Jains, Sikhs, Daoists and other groups that Pew Research Center classified as “other religions” combined – grew globally by 12% from 2010 to 2020.