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 ...

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 work is a series of complex processes. At the outset, there is sample and questionnaire design, as well as field training. During the data collection stage, there is monitoring and remedial ...