Numbers, Facts and Trends Shaping Your World

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  • report

    Methodology

    The American Trends Panel (ATP), created by Pew Research Center, is a nationally representative panel of randomly selected U.S. adults recruited from landline and cellphone random-digit-dial (RDD) surveys. Panelists participate via monthly self-administered web surveys. Panelists who do not have internet access are provided with a tablet and wireless internet connection. The panel is being […]

  • short reads

    Applications for U.S. diversity visa lottery remained near record in 2017

    More than 22.4 million people applied in 2017 to a U.S. visa program that provides 50,000 green cards each year through a lottery system. The number of applicants nearly matched the record 23 million applicants received in 2016 and came as the Trump administration and some members of Congress have sought to eliminate the program – the only one of its kind globally.

  • report

    Methodology

    About Pew Research Center’s fall 2017 survey Results for the survey are based on telephone interviews conducted under the direction of SSRS and GfK. The results are based on national samples. More details about our international survey methodology and country-specific sample designs are available here. Detailed information on survey methods for this report General information […]

  • short reads

    Q&A: The challenges of creating a religious typology

    This new analysis creates a typology that cuts across denominations, sorting Americans into seven groups, or “clusters,” based on their religious practices and values, their views about religion in general, and the sources of meaning and fulfillment in their lives. Rich Morin, a senior editor at the Center, explains how the study was put together, and discusses the role of cluster analysis in creating the typology.

  • report

    4. The RBS poll comports well with data from the full voter file about the partisanship of registered voters

    The finding that the registration-based poll tilted slightly less politically conservative than the random-digit-dial poll raises the possibility that the RBS poll suffered from differential partisan nonresponse, with the Republicans called in the RBS poll being less likely to participate than Democrats. That would yield an RBS poll that was too Democratic relative to the […]

  • report

    Appendix A: Measuring capacity to classify statements as factual or opinion

    Prior to launching the survey, researchers conducted a series of preliminary tests to determine how best to ask Americans to classify news-related statements. The purpose of these tests was to analyze the effects of changes in the language used in the question instructions and response options, the number of response options and the attributions of […]