Numbers, Facts and Trends Shaping Your World

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    Methodology

    About the Pew Research Center’s Spring 2015 Global Attitudes Survey Results for the survey are based on telephone and face-to-face interviews conducted under the direction of Princeton Survey Research Associates International. The results are based on national samples, unless otherwise noted. More details about our international survey methodology and country-specific sample designs are available on […]

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    Methods

    Study Design & Documentation Introduction The Pew Research Center’s Teen Relationship Study was funded, designed and analyzed by Pew Research staff. Quantitative fieldwork was conducted by the GfK Group (GfK, formerly Knowledge Networks). Specifically, the survey examined the attitudes of teens ages 13 to 17 years old, as well as those of their parents, toward […]

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    Methods

    About the Google Play Store Data Collection Findings about Google apps permissions in this report are based on an analysis of data about 1,041,336 apps collected from the Google Play Store between June 2014 and September 2014. The data collection or scraping (“scraping” in this case refers to the process of copying the contents of […]

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    Exploring Racial Bias Among Biracial and Single-Race Adults: The IAT

    To overcome the obstacles of measuring racial attitudes, Pew Research Center conducted an Implicit Association Test (IAT), a technique that psychologists say measures subconscious or “hidden” bias by tracking how quickly individuals associate good and bad words with specific racial groups.

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    Methodology

    Data Sources The demographic and income data in this report are derived from the Current Population Survey, Annual Social and Economic Supplements (ASEC), which is conducted in March of every year. The specific files used in this report are from March 1971 to March 2015. Conducted jointly by the U.S. Census Bureau and the Bureau […]

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    Appendix: Data Source

    The analysis is based on the monthly Current Population Survey (CPS). Collected by the Census Bureau, the CPS is the basis for the national unemployment rate estimate released each month. Designed to be a labor force survey, the questionnaire also collects detailed demographic information on about 130,000 respondents each month. The particular CPS data files […]

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    7. Who provides coverage of the federal government to local communities

    To shed light on what the cutbacks in Washington-based local newspaper correspondents mean for readers back home, a second part of this study analyzed the federal-government-oriented coverage of eight daily newspapers across the U.S. – four with a Washington correspondent and four without – on all 78 days in which Congress was in session from […]