Numbers, Facts and Trends Shaping Your World

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    How Americans tweet about the news

    Here is how the average adult Twitter user in the U.S. tweeted about the news in 2021, as well as how these patterns have changed since 2015.

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    Religious Composition of India

    All major religious groups in India have shown sharp declines in their fertility rates, limiting change in the country’s religious composition since 1951. Meanwhile, fertility differences between India’s religious groups are generally much smaller than they used to be.

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    Acknowledgments

    This report was produced by Pew Research Center as part of the Pew-Templeton Global Religious Futures project, which analyzes religious change and its impact on societies around the world. Funding for the Global Religious Futures project comes from The Pew Charitable Trusts and the John Templeton Foundation. This report is a collaborative effort based on […]

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    Appendix C: Classifying European political parties

    Classifying parties as populist Although experts generally agree that populist political leaders or parties display high levels of anti-elitism, definitions of populism vary. We use three measures to classify populist parties: anti-elite ratings from the 2019 Chapel Hill Expert Survey (CHES), Norris’ Global Party Survey and The PopuList. We define a party as populist when […]

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    Methodology

    The American Trends Panel survey methodology Overview The American Trends Panel (ATP), created by Pew Research Center, is a nationally representative panel of randomly selected U.S. adults. Panelists participate via self-administered web surveys. Panelists who do not have internet access at home are provided with a tablet and wireless internet connection. Interviews are conducted in […]

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    Methodology

    The analysis in this report is based on Pew Research Center surveys conducted between 2007 and 2021, including: The 2021 National Public Opinion Reference Survey (NPORS), conducted online and by mail among a nationally representative group of respondents recruited using address-based sampling (ABS). The survey was conducted among 3,937 respondents from May 29 to Aug. […]