Note: This report was updated on Dec. 30, 2015 to reflect the January-July 2015 National Health Interview Survey estimates released on December 1, 2015. Telephone surveys face numerous challenges, but ...

Survey data in this report are based on Pew Research Center surveys conducted with a nationally representative sample of Hispanics. Differences between groups or subgroups, such as foreign-born and ...

11 to 15 November 2019, Frascati, Italy – A total of 30 participants attended the fifth Center for Development Data (C4D2) International Training Week titled “Special Topics and Recent Developments in ...

Peter Kellner has written a challenging article with the straightforward title Down With Random Samples(Kellner, 2007). His opening lines are: “We all know what perfection looks like. It is a pure ...