Numbers, Facts and Trends Shaping Your World

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    References

    Anderson, Monica. 2015. “A Rising Share of the U.S. Black Population Is Foreign Born; 9 Percent Are Immigrants; and While Most Are from the Caribbean, Africans Drive Recent Growth.” Washington, D.C.: Pew Research Center, April. Barro, Robert and Jong-Wha Lee. 2013. “A New Data Set of Educational Attainment in the World, 1950-2010.” Journal of Development Economics 104 […]

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    Appendix A: Methodology

    Population Estimates and Projections: Definitions, Methods and Data Sources Overall Methodology The national projections presented here use a variant of the basic cohort component model in which the initial population is carried forward into the future by adding new births, subtracting deaths, adding people moving into the country (immigrants), and subtracting people moving out (emigrants). […]

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    Appendix A: About the Survey

    The bulk of the analysis in this report stems from a Pew Research Center survey conducted by telephone with a national sample of adults (18 years of age or older) living in all 50 U.S. states and the District of Columbia. The results are based on 2,002 interviews (801 respondents were interviewed on a landline […]

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    Appendix A: About the Survey

    The bulk of the analysis in this report stems from a Pew Research Center survey conducted by telephone with a national sample of adults (18 years of age or older) living in all 50 U.S. states and the District of Columbia. The results are based on 2,002 interviews (801 respondents were interviewed on a landline […]

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    Coverage Error in Internet Surveys

    With 89% of U.S. adults online, survey research is rapidly moving to the Web. But 89% is not 100%, and surveys that include only those who use the internet run the risk of producing biased results.

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    The art and science of the scatterplot

    This type of chart is growing more popular, but just half of those with a high school education or less correctly interpreted one in our science quiz.

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    About This Report

    Data for this report was collected for Pew Research Center. The survey was administered online by the GfK Group using its KnowledgePanel, in English and Spanish, to a nationally representative sample of 1,060 teens ages 13 to 17 and a parent or guardian from September 25 to October 9, 2014, and February 10 to March […]

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    Chapter 3: An Analysis of Android App Permissions

    Most large internet companies use the same general methods for informing users about how their data will be used. These include agreements any frequent internet user would be familiar with such as privacy policies or terms of service. This study looks at one type of agreement: the permissions required by apps on Android devices. In […]

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    U.S. Public Becoming Less Religious

    There has been a modest drop in overall rates of belief in God and participation in religious practices. But religiously affiliated Americans are as observant as before.