Numbers, Facts and Trends Shaping Your World

Read our research on:

Search results for: “data centers”

Refine Your Results

  • report

    Bots in the Twittersphere

    An estimated two-thirds of tweeted links to popular websites are posted by automated accounts – not human beings.

  • report

    3. Political data in voter files

    Among the most important data on the voter files for the election analyst are the records for whether or not someone is registered to vote and whether they voted in a given election. These individual registration and turnout records come directly from records kept by each state for every election. The turnout record indicates whether […]

  • report

    Ruth Igielnik

    Ruth Igielnik is a senior researcher at Pew Research Center. She focuses on the Center’s research on social and demographic trends, politics and methodology. Igielnik is a contributing author of studies about voter files, likely voter modeling, gun ownership as well as other social and demographic changes happening across the U.S. Before joining the Center, Igielnik worked […]

  • report

    For Weighting Online Opt-In Samples, What Matters Most?

    A growing share of polling is conducted with online opt-in, or nonprobability, samples. This trend has raised some concern within the industry because, while low participation rates pose a challenge for all surveys, the online opt-in variety face additional hurdles.

  • presentation

    Public Opinion Research in Sub-Saharan Africa

    Pew Research Center hosted a survey methodology workshop on the opportunities and challenges of conducting public opinion research in sub-Saharan Africa to identify and discuss best practices and future directions for the field.

  • report

    Acknowledgments

    This report is made possible by The Pew Charitable Trusts. This report is a collaborative effort based on the input and analysis of the following individuals. Find related reports on science and STEM online at: www.pewresearch.org/pewresearch-org/science and reports on gender and the workplace at www.pewresearch.org/pewresearch-org/social-trends. Primary research team Cary Funk, Director, Science and Society Research […]