Numbers, Facts and Trends Shaping Your World

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    Methodology

    About the Pew Research Center’s Spring 2017 Global Attitudes Survey Results for the survey are based on face-to-face interviews conducted under the direction of Voices! Research & Consultancy. The results are based on national samples, unless otherwise noted. More details about our international survey methodology and country-specific sample designs are available here. Detailed information on […]

  • report

    Methodology

    The analysis in this report comes from two sources: 1) Pew Research Center analysis of the Census Bureau’s American Community Survey (IPUMS) and the 1990 and 2000 decennial censuses and 2) a nationally representative survey conducted from July 11 to Aug. 10, 2017, among a sample of 4,914 adults 18 years of age or older. […]

  • report

    5. Attitudes toward spirituality and religion

    Spirituality and religion can be defined in many different ways, and the distinction between the two concepts often is muddy. For the purposes of this analysis, spirituality refers to beliefs or feelings about supernatural phenomena, such as life after death, the existence of a soul apart from the human body, and the presence of spiritual […]

  • report

    1. Trends in party affiliation among demographic groups

    The balance of partisan affiliation – and the combined measure of partisan identification and leaning – has not changed substantially over the past two decades. However, Democrats hold a slightly larger edge in leaned party identification over Republicans now than in 2016 or 2015. In Pew Research Center surveys conducted in 2017, 37% of registered […]

  • short reads

    Despite apparent coup in Zimbabwe, armed takeovers have become less common worldwide

    Since the end of World War II, there have been 225 successful coups (counting the events in Zimbabwe) in countries with populations greater than 500,000, according to the Center for Systemic Peace, which maintains extensive datasets on various forms of armed conflict and political violence. Most coups occurred during the height of the Cold War, from the 1960s through the 1980s.

  • report

    3. Variability of survey estimates

    While previous sections of this report have focused on the kinds of systematic biases that may be the largest worry when it comes to public opinion polls, the variance (or precision) of estimates is important as well. Pollsters most commonly talk about precision in terms of the “margin of error” (MOE), which describes how much […]