An Illinois federal judge granted the insurer's request for over 38,000 data entries from a survey the plaintiffs created and ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Pew Research Center releases its survey data publicly as IBM SPSS files with the ...

Health equity has become an increasingly popular research topic during the course of the past 25 years. Many factors explain this trend, including a growing demand from policymakers, better and more ...

Pew Research Center conducted this analysis to explore partisan identification among U.S. registered voters across major demographic groups and how voters’ partisan affiliation has shifted over time.

The Center for American Progress has worked with NORC at the University of Chicago to design a comprehensive, nationally representative survey that collects data on the lives, attitudes, and ...